patient has tested positive. we've helped a dozen laboratories around the u.s. do high-quality ebola testing, so that that testing doesn't all have to come to us here at cdc, and can be done more rapidly locally, as is being done in austin, texas. and we expect that we will see more rumors or concerns or possibilities of cases, until there is a positive laboratory test, that is what they are. >> cnn's martin savage joining me now from dallas. martin, dr. frieden said that there were nine people who had definite contact, and they included family members and some of those people who are working on that ambulance, who had direct contact. but that they're not showing any symptoms. this was one way of trying to comfort people or allay some fears? >> reporter: exactly. and the news is really good, because as you've just heard, essentially, it is, there was no other case of ebola in america,

at all, with the exception of the one here in dallas, and of course, that means that all those people that are being monitored in dallas have not shown any symptoms of the disease as well. it is contained at one. which, of course if you live in dallas, if you live anywhere in dallas, you'll take that as a very positive sign. the nine people you talked about, those would be the ones that would be considered high-risk those are the ones that probably had the closest contact with thomas duncan before it was determined that, yes, he has ebola. so you were talking about the four people who were in quarantine. this is his girlfriend and her family. and then you would be talking about those emergency or medical personnel who may have treated him the first time he went to the hospital, before it was determined he had ebola. and then, perhaps, apartments that transported him to the hospital on the second trip when, in fact, they con timbfire had ebola. there was an interesting edition to the group of people being monitored. anyone who rode in that

ambulance afterwards may be monitored. it's not saying that they are definitely had contact, but out of an extra sense of precaution, their going to monitor those people as well. so the total number of people being monitored, high-risk and low-risk, is 50, which is down from the initial group of 114. it was all good news. >> and then, martin, do we know anything more about the four people, relatives and the friends, that were in that apartment, quarantined for so many days. now they have been moved to another location after we saw with that matching video, people in hazmat suits were trying to decontaminate the apartment they were in. but they are now in another undisclosed location. do we know if they are receiving any kind of medical treatment or monitoring at this undisclosed location? >> reporter: without a doubt, they are. and that would include probably having their temperatures taken at least twice a day, with medical staff coming in to just make sure that they are okay. because they're the ones that are considered to be the highest risk. they were moved out of that apartment complex. that was a relief to a lot of

people in the neighborhood, just because they felt, you know, it's high-density living, of course, and if you have people who could possibly come down with ebola, is it safe to keep them amongst a whole lot of other people? is now they are in a private home, said to be a four-bedroom residence, that it's surrounded by a -- in a gated community, type thing. that they're on acres of land, and in fact, officials said it's the kind of place that i would want my family to be. it was brought about as a result of someone in the community feeling for their plight, this is the family, and decided this was the right place for them to be at. they're said to be fine and they are said to be happy. they'll have to be there, though, until, well, the end of the 21-day quarantine. >> that was a very generous donation. martin savage, thank you so much, joining us from dallas. all right, now to another developing story. world leaders are reacting with outrage over the latest beheading by isis militants. they murdered a fourth victim this week when they killed british aid worker alan henning, and now the terrorist group is

threatening to kill another american, a medic that they're holding. erin pike is at the white house. we heard from the parents of that american medic today, what are they saying? >> reporter: this is ed and paula kassig of indiana, they put out a video statement today, formerly known as peter kassig, he changed his name to abdu abdulrahm abdulrahman, and in this video, they talk about how he comes from a long line of aid workers and teachers. he himself went over to syria and started his own foundation, group to help syrians suffering from the civil war. he was then detained on october 1st, just a year ago. and during his time in captivity, he converted to islam. i want to play a part of that video statement from his parents to you. listen here.

>> we know that the syrians are suffering. we also believe that violence is not the solution to the problems that trouble us all. there is so much that is beyond our control. we've asked our government to change its actions, but like our son, we have no more control over the actions of the u.s. government than you have over the breaking of dawn. >> most of all, know that we love you and our hearts ache for you to be granted your freedom so we can hug you again and set you free to continue the life you have chosen, the life of service to those in greatest ne need. we implore those who are holding you to show mercy and use their power to let you go. >> reporter: so, obviously, a tense an emotional time for that family. now, we also have heard from the obama administration on this. we got a statement yesterday from national security counsel spokesman and i want to read part of that statement to you.

she said, at this point, we have no reason to doubt the authenticity of the video released earlier today. now, this was yesterday, the isis video that was released yesterday. she goes on, we will continue to use every tool at our disposal. military, diplomatic, law enforcement, and intelligence, to try to bring peter home to his family. now, fred, separately, we can also report that we got some updated information from central command this morning and air strikes against isis targets in both iraq and syria continue, almost every day. that did not change last night, there were some additional air strikes overnight, so we will continue to get updates from the administration as they release them, fred. >> all right. erin mcpike at the white house. thanks so much. all right. some unusual diplomacy happening in south korea today. top officials from north korea made a surprise visit, the first such high-level trip in five years. and they delivered a message. pyongyang is willing to hold another round of new high-level meetings this month or in early

november. meanwhile, kim jong-un remain mysteriously out of sight. officials say he has been suffering from what they call discomfort for nearly a month. paula hancock is in seoul, south korea, on more on what happened. >> reporter: this visit was both surprising and significant. the man considered to be second in command in north korea after the leader kim jong-un popped down to south korea for a last-minute visit. he's a vice marshal in the military and he was accompanied by two more very high-level officials the from north korea. on the face of it, they were here to attend the closing ceremony of the asian games. the north korean delegation, the national security chief, and the prime minister. the president also said she was willing to meet them, but officials is said there was no time. the north korean media has been particularly damming and cutting of the president since she took power. the north koreans agreed to another round of high-level talks at the end of this month

or the start of next month. one observer says he can't remember such a hay-level delegation from the north coming from the south in decades. it shows that kim jong-un, although absent for more than a month, is still very much in charge. it is assignmeumed that he is ir health or having health issues. but experts say the fact that we are seeing three of the top officials in north korea coming down to what is technical enemy territory to talk peace shows that there is a high level of stability in the north. paula hancocks, cnn, seoul. and this breaking news. jeanne-claude has died of a heart attack. d d d duevallier was in the office.

he was overthrown in an uprising. he fled haiti and lived in exile in france. he returned to haiti in 2011, where he was charged with corruption and abuse of power. in 2013, he entered a plea of not guilty. jeanne-clau jeanne-claude duvalier, dead at the age of 63. live pictures next, thousands converging on the central district. what's going to happen next here? we'll go live to the demonstration. 3rd and 3. 58 seconds on the clock, what am i thinking about? foreign markets. asian debt that recognizes the shift in the global economy. you know, the kind that capitalizes on diversity across the credit spectrum and gets exposure to frontier and emerging markets. if you convert 4-quarter p/e of the s&p 500, its yield is doing a lot better... if you've had to become your own investment expert, maybe it's time for bny mellon,

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all right. in hong kong, thousands of protesters are flooding the streets again today. at least 20 people have been arrested in earlier clashes, and now student leaders are saying they won't attend talks with government officials. cnn's will ripley is there on

the scene. so, will, hong kong leaders have laid down another ultimatum. but does it appear as though protesters are starting to make a move and clear out in time by monday? >> reporter: in fact, the exact opposite is happening, fred. and i want to show you, this is the scene of that clash last night between police and protesters, where police forced their way through this barricade. just in the last 24 hours, what the protesters have done is increase the size of this barricade dramatically, to make it much more difficult for officers to pass through. you can see, they have these things zip tied together and they've now piled them on top of each other, and there are multiple barricades like this all around the main protest area in admiralty, in the heart of hong kong. you also have a group of young men like this, and they're stationed in areas all over this protest zone, essentially, they have put together a plan. they call it a battle plan, so if the hong kong police decided to move in and try to disperse,

they actually have a step-by-step method of communicating with each other, reinforcing their barricades, and making sure that the thousands of people who are right down there on those streets continue to hold their ground. you are looking at what just one week ago, fred, was a major highway running through the city. now it is shut down, businesses are closed, hong kong knows that they need to get this city moving again, but without some sort of a compromise, these protesters say they are ready to stand their ground. and we're just going to have to watch and see what happens. >> now, we know there's a lot of censorship in mainland china and i understand that these kinds of images are not being broadcast on television in mainland china. but, is there a concern, you know, that because this message is kind of insular that people in china may eventually learn, if they haven't already, in some other kind of matter, and how this might spark a more widespread protest?

>> reporter: yeah, fred, there's very much a concern. a source that's very familiar with the hong kong government says that beijing is growing increasingly worried about the situation here in hong kong. because they're afraid that mainland chinese people will see protesters like this, and if the government does make some sort of a concession and somehow appears weak, then perhaps it might give motivation to other protesters in other chinese cities, to do the same thing. beijing has a recipe for how to handle demonstrations like this one behind me. it involves sensoring the media, which we know is happening in china right now, and also using tremendous displays of force to move in and clear out protests, but with the eyes of the world on hong kong right now, they can't use those same tactics here without some very serious repercussions, not only public relations, but also just the fact that perhaps more people would then rush to this area and this problem could only escalate. >> will ripley, thank you so much, in hong kong.

so with the first case of ebola diagnosed in the u.s. this week, many of you are concerned about catching the deadly virus. next, we'll have a doctor join us to answer some of your questions that you've tweeted us about ebola. ♪ who's going to do it? who's going to make it happen? discover a new energy source. turn ocean waves into power. design cars that capture their emissions. build bridges that fix themselves. get more clean water to everyone. who's going to take the leap? who's going to write the code? who's going to do it? engineers. that's who. that's what i want to do. be an engineer. ♪ [ male announcer ] join the scientists and engineers of exxonmobil in inspiring america's future engineers. energy lives here.

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a 33-year-old free lance cameraman for nbc news tested positive for ebola in liberia on thursday. asho ashoka mukpo will be transported to nebraska for treatment. his father describes what it was like to find out his son has ebola. >> he texted me and he says, dad, you need to answer the phone, i think i'm in trouble. and i immediately knew. it was very scary. you know, he just spent a month filming people dying from this disease and it's impossible for him to lie there and not go there, not think about it. >> the nebraska medical facility where mukpo is headed has already had success treating an american with ebola. dr. rick sacra and an aid worker who contracted it in liberia was released on september 25th. well, today, many of you have been tweeting your questions about ebola to us here at cnn at #ebolaqanda.

dr. eugene stringer is will be hear addressing some of yours questions, answering them as best he can. so, you know, first, before we get to that, when you hear the case of this nbc cameraman, and then we understand the krcrew tt was working with him, they're heading back to the states and they will be in isolation, but necessarily mean they'll be receiving medical treatment, because they haven't shown any signs. what does that mean to be in isolation? >> the main point of that is that they are observed for evidence of disease, without having a confirmed case, you can't spread ebola. the main thing will be to monitor their temperatures, as is being done if dallas, for 21 days following the last time that they were in west africa. and also for other symptoms of ebola. but, at this moment, as you imply, i mean, there's no disease the treat. it's not treatment, it's just quarantine, if you will, for the remainder of that 21-day isolation period. >> and we heard from tom friedman at the cdc in that press conference last hour,

reemphasized that the peak period is 8 to 10 days after exposure. but in some cases, it could be 21 days before there are any signs. and as we head into flu and cold season, you know, a lot of folks would see some real parallels of some of the symptoms of ebola and symptoms of those other t x things. >> right. well, certainly, some of the symptoms of ebola are not those that are usually seen with flu. for example, abdominal pain, certainly bleeding, but the fever, the muscle aches are certainly, you know, possible with either influenza or ebola virus disease. and also some cases the flu may be a little bit atypical and have gastrointestinal symptoms associated. i should also say that when a person returns to the united states from west africa with fever, the list of possible things they may have is long and ebola is not at the top of the list of those things. you're thinking about things

like malaria and typhoid fever, et cetera. >> let's get to some of those questions that have been tweeted. why isn't there a quarantine procedure in place from people traveling to the usa from african countries, such as guinea, liberia, and sierra leone from ebola? >> i think part of the reason for that is that the people who are infectious with ebola are the people who have shown symptoms. now, we have the case of the dallas patient who was not having fever. the point is, they are attempting to screen for symptoms. and it is the symptomatic patients, at least, heretofore, who have been the ones to transmit ebola. so i think that quarantining someone without symptoms, among other things, is diverting effort from things that should have effort devoted to them. now, i think that the pain point here is to make sure that people don't have symptoms, as i just

said. and in particular, fever. >> and how difficult will it be to establish national guidelines for the handling and disposal of ebola waste? that question also coming in via twitter? >> i think that, certainly, cdc is going to give us a major lead on that. i think that we certainly face a number of different pathogens in the hospital environment and elsewhere that require different means of disposal. for example, you have the one that causes slow virus disease, that can even infect people in tissue samples, in certain cases. not to -- just the point being that i think the main issue here is going to be identifying people with symptomatic ebola virus disease, who are attempting to enter the u.s. or have entered the u.s., although mr. duncan's case, he did not have fever before arriving. >> dr. gene stringer, thank you so much. he'll be back to answer more of

your questions. tweet your questions to #ebolaqanda and we'll, of course, try to get on as many as we can. all right, so ebola is not the only health scare. coming up, we'll look at the other killer virus, enterovirus, d-68. it has hit 48 states and already killed four children and there's no vaccine.

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here are some of the big stories crossing the cnn news desk right now. a fire in shanksville, pennsylvania, may have damaged artifacts from september 11th. it's not known how the fire started in the headquarters of the memorial to united airlines flight 93. this is new video, however, from a viewer who says his father was working on a nearby construction site and spotted the fire and reported it to his supervisor. they're now assessing the damage. it's been three weeks now since a pennsylvania trooper was shot and killed and police are still searching for the suspect. an officer says eric frein is making mistakes and s ru s and on supplies. they've found clothing and ammunition believed to have been left behind from him. they say it's only a matter of time they catch the 31-year-old suspect. and officials in virginia will use a plane with a high-powered camera in the search for a missing college student today. hannah graham has been missing for nearly three weeks now and some 150 people are out searching on foot.

hannah's parents just released a statement giving thanks to those helping their family. >> we would like again to express our enormous gratitude to all of those who have been involved in the search for hannah, including the police, the professional search teams, the people staffing the telephone tip line, uva students, our friends, neighbors, and work colleagues as well as the citizens of charlottesville and the surrounding area. we would also like to thank the many, many people who have supported our family during this terrible ordeal, through words, deeds, thoughts, and prayers. >> jesse matthew is in custody right now. police believe he was the last person to see her. he is charged right now in her abduction. alleged thieves are caught on camera, doing what? hurling chainsaws at police.

as you see right there, our affiliate wsb reports police in duluth, georgia, are still looking for these two men in the back of the suv. they tossed three chainsaws and even a weed trimmer, but minutes into the chase, the men abandoned the suv and then fled. another health concern rocking the u.s. is the spread of enterovirus d-68. more than 500 people in 43 states have respiratory illnesses caused by this virus and four people have died. what exactly is enterovirus and how do you catch it? cnn's senior medical correspondent, elizabeth cohen, explains. >> reporter: this particular virus is called enterovirus d-68, and they're seeing it mostly in the midwest and the southeast. there are dozens and dozens of different types of enteroviruses, and they cause different kinds of symptoms. some 'cause respiratory

symptoms, others might cause gastrointestinal symptoms. and often an entero virus is not a very big deal. if you've had a summer cold, likely it was caused by a an enterovirus. but there's something about d-68 that makes it worse. there's something about this type of enterovirus that gives it much more severe symptoms that often lands people in the hospital. this time of enterovirus has been around since the 1960s, it's popped up here and there in the united states and in other countries as well. they don't know why it's gotten so bad this year. enterovirus is just spread person to person, and that may be one reason why we're seeing this at this time of year. children in the southeast and the midwest, many of them went back to school in mid-august, and that's when all of this started. the d-68 enterovirus, it can get anyone really sick, but much more likely to get a child sick if they have asthma or if they have a history of asthma. for some people, this enterovirus is going to be bothersome, but won't land them in the hospital.

as a parent, if your child just gets a regular cold, there's no reason to be alarmeded. but keep an eye on your child, if they start to get worse, if they have a rash or has difficulty breathing, you need to get medical attention. pediatricians tell me this disease can get very bad, very quickly, so as one pediatrician said, there is no time to dawdle. >> our thanks there to elizabeth cohen. so if you are a parent, what do you do to keep your kids safe from enterovirus d-68? dr. jessica snowden is a pediatric infectious disease specialist at the university of nebraska medical center. dr. snowden, nice to see you. >> hi. >> so what advice do you have for parents who are very nervous about this? >> i can understand, i'm a parent of a 3-year-old who wheezes in day care. so this is something i think about all the time. the best advice i would have for parents is to make sure you're working with your child on washing their hands, even with toddlers, we can work on that, to try to keep them from getting sick, and watching them closely

when they do get their usual cold they're going to get this time of year. as parents, we develop a radar for knowing when our kid is sicker than usual, when there's something a little bit out of whack. if you feel like there's something different or more severe going on, you can go get them checked out. we would rather have you come then sit at home and worry. >> are there some kids that are more susceptible, at greater risk? >> it appears to be in younger children that we're seeing this cause a problem, and that's probably because they have not been exposed to this virus before, so they don't have any pre-existing immunity, like adults and older children may. in children who have a predisposition to wheeze, whether a child who has prediagnosed asthma, or a child who wheezes with their cold, they may be more likely to wheeze. one thing you need to make sure you do is you have your asthma action plan ready, have their controller medications, and always have their rescue medications with you when you're

out and around during this kind of cold season. >> how do you identify it. how does a parent look at this or see symptoms in their kid and say, you know, this is not a cold, this is not a flu, this is something else? >> as a parent, things i would watch for, if your child appears to be more trouble breathing than normal. one thing we noticed with my son, if he's wheezing, the skin between his ribs pulls in and he's breathing a lot faster than normal and he can't settle down. that may be a sign your child may be wheezing or having difficulty and you may want to get them checked out. obviously, if your child is turniturn ing blue or gasping for breath, that would be a sign. the thing you would notice earlier is that they're breathing fast or that they seem to be pulling in, you can see them working harder to breathe. those would be signs they're wheezing and having more troubles. >> go ahead. >> go ahead. >> your information is a lot more important than my question. if it seems like they're having a harder time than usual, most of us with young children have

seen our kids have 10,000 is notty noses at this point in their life. and we kind of know what that's going to look like for them. if you feel like it's worse than normal, this is worse than normal, where you can hit in their nose and they've got all that snot, that may be okay. but if you notice they seem like they're struggling more to preet or not able to drink enough because they're having trouble breathing and coughing, those would be things i would go get checked out for. >> and since there are no antiviral medications, you know, once a child is diagnosed with this, what's the fix? >> most of it's going to be comfort care. you want to make sure they're getting enough to drink, it's okay if they're not drinking enough as normal, okay if they're not eating. we want to make sure they stay well hydrated. and things you'll look for, you'll make sure their mouth is still wet, that they're still making good urine for you, whether it's wet diapers or actually going to the bathroom. other things that we can do, if they have a fever that's making them uncomfortable. fever in and of itself is not

harmful, but if they're uncomfortable with it, you can give them something like acetaminophen or ibuprofen to try to bring it down and make them more comfortable. and if you think they may be wheezing, that would be a time to make sure you've got your controller medications for their wheezing and their rescue medications like albuterol or other inhalers they may need on hand for that. but there'll be no role for antibiotics in this case, unless your doctor is seeing like an ear infection that may occur as a complication and not really an antiviral medication. >> great information. dr. jessica snowden, appreciate it. >> thank you. next, your weekend forecast. the map is full of extremes and i think everybody was feeling it this morning. pull on a little sweater or two. jennifer gray shows us where, next. there comes a time in everyone's life when you want more. like a new meticulously engineered german sedan. finely crafted. exactingly precise. desire for such things often outpaces one's means. until now.

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oh, it's a weekend filled with weather extremes. feels like fall in the east, but a very different story in southern california. jennifer gray is following all of it for us. >> you know it. we felt the chill here this morning in the east, and chicago was feeling it even more than us. in fact, a few flurries fell in chicago, making it the third earliest snowfall ever there. so, yes, very chilly for folks in chicago. and it's going to stay that way as we go through the next couple of days. we had this massive cold front cause all the thunderstorms we've been watching the damage over the last couple of days, in places like dallas. that just shifted all the way over to the east, and now very cold air is filtering in behind it. really affecting the northern

plains, the great lakes area, and even dipping down as far south as, yes, places like atlanta, nashville, even as far south as new orleans. right now, just dealing with a little bit of rain. we had some snow flurries earlier in portions of wisconsin and even right around chicago. so 46 degrees today, your high temperature in chicago, but it's not going to be lasting too long. we'll have another cold morning tomorrow, but then temperatures will rebound. 56 on sunday, 60 on monday. detroit, similar for you. 50 today, 54 on sunday, 61 on monday. lack at these overnight lows, though. very cool across much of the country. 44 in atlanta for tonight, waking up tomorrow morning. this is how you'll feel. 37 in chicago, temperatures around 35 in minneapolis and in the 40s in the northeast. of course. a very different story on the west coast. we're looking at very warm temperatures, southern california, that fire threat is going to remain high. very, very windy. the santa anas have kicked up,

so that fire danger is going to remain very high over today and tomorrow. so temperatures around 90 in los angeles today. cooling off a little bit, as we roll into the part of next week, and the same for vegas. temperatures right around 93 today, 92 on monday. phoenix, you are also staying just a couple of degrees above normal. temperatures in the mid- to upper 90s. >> oh, my. quite the mix there. >> yeah, got a mixed bag. >> all right. thanks, jennifer. appreciate it. so many of you have been tweeting your ebola questions to #ebolaqanda. well, next, we have an infectious disease specialist from the emory school of medicine here to answer your questions. ee financial noise financial noise financial noise

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cnn's chief medical correspondent, dr. sanjay gupta, is following the historic first diagnosis of ebola in the u.s. he has the latest on how health officials are handling the situation. >> well, what has happened over this past week has certainly been historic, from a medical standpoint. the first patient ever diagnosed with ebola in the united states. and even more than that, the first patient diagnosed with ebola anywhere outside of africa. in many ways, this is historic. it has, obviously, concerns, but it was not unexpected in so many way s as well. the idea that someone could get on a plane, who had been exposed to ebola, but not yet sick, and

fly around the world before becoming sick is something we were worried about and concerned about for some time. well, now it has happened. and this was a test in so many ways for the united states and specifically the city of dallas. a couple of observations. first of all, the big things in terms of the united states being able to take care of a patient like this. there were many things that did seem to work well. mr. duncan, he's 42 years old, he was in critical condition. we now he's in serious but stable condition. he does seem to be improving. also, the family and friends. many of them have been identified, a few of them had been quarantined. they are being monitored. they are being checked to see if they develop any signs or symptoms of ebola, because if they do, they would go to the hospital as well. that is exactly what is supposed to happen. those are some of the trued and tried principles of stopping an outbreak. but one can't help but notice that there were a few missteps as well, and the term, the devil is in the details sort of comes to mind. this idea that mr. duncan within

the to the hospital initially, it was even identified as being a patient who recently returned from liberia, that was written down in a chart. yet somehow that information was not acted upon. he was not further investigated based on that information and subsequently he was discharged from the hospital for two days, gone, and possibly interacting with more people. that was a concern. and now a concern that i'm sure no one possibly predicted, but it has to do with just the waste inside his apartment where he stayed after he became sick, but before he went to the hospital. i had a chance to ask dr. frieden, the head of the center for disease control about that very issue. >> i think the issue we've been challenged by is what do you do with the waste. that's been an issue that we have been working intensively with the department of transportation, which regulates the movement of potentially infectious waste. >> so just to reiterate, you can do all these big things well, but in this case, they didn't

have permitting to actually transport some of this hazardous waste from the these are the sorts of details that are going to matter and the details that i'm sure public health departments all over the country are starting to think about. one thing has been clear. anybody who has been following the story for months like we have, what happened in dallas is likely to happen again. there patients who are probably flying on airplanes who may have been exposed to ebola and may end up in the united states. this story will repeat itself. let's hope the lessons we learned can be applied and be more helpful for the next time. >> still lots of questions and that's why the doctor is with us to answer your questions. you have been sending us and tweeting us. one of the last points was making the miss posal. that has been the question that

many have asked by way of twitter. does it mean disposed of contaminated colors? >> certainly with ebola, it's the two commonly used anti-viral agents and they need to be used for the general virus that ebola is. we know that you cook bush meat in africa, cooking destroys it. we also know that aerosolization, for example, certain medical procedures that need to be avoided in patients with proven ebola and possibly needle aspirations of various kinds. you can get ebola through that route. the point being that heed is going to be and the guidance for how to dispose at the waste and the transport of the waste is

also now another point i was noting a short while back. yes, people can go to the bathroom and the sewer system is okay. also the measures that are utilized with regard to the sewage system to get rid of microorganisms should eliminate it. >> here's another question we received via twitter. is there anything i can buy at my pharmacy that acts against ebola? >> no. not as an anti-viral. we heard of the z map that was effective in dr. brantley's case and that of his colleagues, however there is nothing in the pharmacy that you can buy that will be a specific ebola anti-viral. >> i think i went out of order there. let's go back to the first question. can you carry the virus on your hands and transmit it to another surface even though you are not

sick if you have been caring for a sick patient? >> we know that the transmission has been from people with symptoms, although we also know that ebola is transmitted on the hands and we also know that, for example, shaking hands and being within three feet of someone with ebola for annex tended period of time without protective equipment is a risk. >> you are likely going to touch your face and eyes and mouth. >> you could carry ebola on your hands although we are more susceptible to drying. i would not expect that in a long duration. if you have ebola, you don't have to pick it up from somebody else. you may have it in your bodily fluids. >> how likely is it that it could mu tad in terms of symptoms or transmission? >> ebola is not known to be like

influenza. they play genetic russian roulette. the genome is not segmented so that it can mix and match in that way. we know there five different species and some were not known about until the late 1980s. things we don't know about. as far as ebola mutating dramatically during one epidemic, that would be unlikely. >> thank you so much. morehouse college of medicine. we'll be right back. ♪ ♪ ♪ ♪ great rates for great rides.

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this is at newark liberty airport in new jersey investigating a sick passenger on a plane. none of the 255 passengers on that plane are being allowed to deplane. the crew members are being forced to stay on board. we are told by the port authority of new york that the male passenger was vomiting. it was a united airlines flight from brussels, the same city where thomas duncan had a connection. the plane landed at 12:15 and has been you should quarantine ever since. the cdc is currently trying to determine where else that passenger may have traveled. it is normal protocol, we are told to investigate whenever

someone is sick on a plane. we will continue to bring you details as they become available and our own christine is on her way to the airport to give us more details as well. >> hello again. in the cnn newsroom, trying to ease the public's fear of ebola spreading in america. this is a short time ago. they assures everyone there is only one person who tested positive for ebola in the u.s. people may have come into contact with thomas duncan. we have well over 100 inkwirys and we assessed each of those

with local health departments and just this one patient has tested positive. we have tested a dozen laboratories to high quality testing and that testing doesn't have to come to us. it can be done more rapidly as it's being done in austin, texas. we expect to see more rumors or concerns or possibilities of cases. >> nine people had definite contact with thomas duohomas du. they have not shown symptoms so far. they included friends and family members as well as the health care professionals. some of whom were in the ambulance who had direct contact with duncan, however, he remains

in serious condition at a dallas hospital. as cdc workers focus on the nine people in dallas who had direct contact with ebola, at least 3,000 american troops now are preparing to deploy to the center of the outbreak. now even more troops are slated to head to liberia. barbara star takes a look at the preparations. >> with 3,000 troops already tapped to head to ebola ravaged west africa, the u.s. military is increasing the fight against the deadly disease. hundreds more troops are being added to plans to help the infected countries contain and control ebola. >> it's america. our doctors and our scientists and our know how that leads the fight to contain and combat the epidemic in west africa. >> approximately 200 troops are already in liberia.

secretary of defense chuck hagel signed orders for another 700 from the 101st airborne in coming days to staff a command headquarters. 700 more will be going to help build and advise on mobile hospitals. >> we are standing up a field hospital in treatment units and will be training thousands of health workers. >> even before most left the u.s., military officials told cnn the pentagon is considering drastic measures to ensure they don't come back to u.s. shores with the disease. >> we are working with experts on this. >> that could include isolation for 21 days. the ebola incubation period for troop who is may have come in contact with the disease. all troops will be monitored daily for symptoms and all service members will face increased monitoring for the 21

days before they are allowed to return to the u.s. >> this is a complex emergency that has significant humanitarian and political dimensions. >> how concerned is the pent gon? they will take all their own supplies. food, water, fuel. everything they need for a six-month deployment. fred? >> thanks so much. some unusual diplomacy happening in south korea. top officials made a surprise visit. the first such high level trip in five years. they delivered a message. pyongyang is willing to hold a new round of high level meet this is month or early november. north korea's leader, kim jung un remains mi seeruously out of sight suffering for discomfort for nearly a month. >> there has been a brutal killing of a western hostage by isis. this time the beheading of

british aid worker allen henning. they released a video showing the killing. henning was kidnapped in syria the day after christmas after he went to help as a medic. video contained a threat to american hostage peter cassing. a mass captor threatens the indiana man's life saying his death will be president obama's fault. his family released a video statement. >> there is so much that is beyond our control. we asked our government to change its actions, but like our son, we have no more control than you have over the breaking of dawn. we implore his captors to show mercyy and use their power to let our son go. >> doctor son, we hope thaw will see this message from me and your father. we are so very proud of you and the work you have done to bring

humanitarian aid to the syrian people. we were grateful and relieved to have received your messages earlier this year. we know you were very worried about your friend who was taken with you. he was released and is well. please know that we are all praying for you and your safe return. most of all, know that we love you and our hearts ache for you to be granted freedom to hug you again and set you free to continue the life you have chosen. the life of service to those in greatest need. we implore those who are holding you to show mercy. use their power to let you go. >> we have more. >> fred, we first met peter in the summer of 2012. he had just been in lebanon for a short while after having

thrown whatever medical supplies he could get his hands on into a backpack and making his way there. he decided that it was his purpose in to try to help wounded syrians. that is exactly what we found him doing at a hospital in tripoli, lebanon. he had infectious enthusiasm and passion about the plight of the syrian people he felt to make a difference. listen to what he told us. >> we get one life. we don't get do-overs. for me it was time to put up or shut up. i didn't have a choice. this is what i was put here to do. i guess i'm just a hopeless romantic and idealist and i believe in hopeless causes. >> peter and i have stayed in close contact and a few months after we met him he set up his own nonprofit and assistance. it was focused on trying to help

with syrian refugees in turkey and inside syria. also running much needed medical missions either training up volunteers because of peter's emt background and something he was qualified to do or deliver medical aid and that is what he was doing when he was captured by isis on october 1st, 2013. we understand during his captivity at some point he converted to islam taking on a name according to a statement released by his family. they do understand from other hostages who have been released that he took great comfort in his faith. fred? >> thank you so much. the search is back on in the indian ocean for that missing malaysian airliner. are crews any closer to fining the plane six months after it disappeared?

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searchers are heading back to the indian ocean this weekend looking for the malaysian airliner that vanished in march with 239 people on board. this time around they are going deep beneath the ocean surface with new technology. here's tom forman. >> all through the thundering waves of winter, the ships pressed on beyond the indian ocean. pulsing out sonar signals. the most detailed map of the sea bed ever in this area.

16,000 square miles with crumbling under water volcanos and winding valleys and plunging canyons and maybe the solution to a mystery. the new map is not fine enough to show wreckage, but it's a wealth of information to guide search vessels. >> they will be able to hold a tighter path above the ocean floor knowing what's coming ahead of time to go faster and get more done in less time. >> before the search broke off earlier this year, much hope was pinned on the blue fin under water search robot. it came up independent, but now with the new map, a much broader search with sonar is beginning. australian authorities remain convinced that this is the right place to look saying receipt refinement about the plane's flight path has given greater certainty about when the aircraft turned south into the indian ocean. that gives a better sense of

where it ran out of fuel, most likely south of these submerged mountains called broken ridge. but -- >> we have to be cautious about overpredicting or overconfidence in the predictions or you end up where you thought you would, but it may not be the right place. >> don't look for people scanning the surface. now it is all about looking in places nearly four miles beneath the waves. once again hoping for a break. >> it is scheduled to last for about a year. a big mystery still remains. what caused this plane to go down? cnn, washington. and asking experts the questions. be sure to watch vanished, the

mystery of malaysia airlines flight 37, 9:00 p.m. eastern.

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the future. >> a century ago trolleys ruled until the automobile came along. now a younger generation of urban commuters are reversing course once again. >> we look into the future and a lot of people will be coming to the community and we have to figure out how to get around. >> light rail is seen as the cinderella way of getting around. the majority of the people will take to their own wheels. see the bridge over there? about a year from now, the transportation planners hope it won't change the equation. the crossing bridge will be the first of its kind in the united states. off limits to private automobiles.

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this breaking news, the condition of the first person in the u.s. with ebola has worsened. he is in critical condition in a dallas hospital. what more can you tell us, martin? >> unfortunately it's not the kind of news we wanted to bring to you, but texas health officials changed what is the medical status of thomas duncan

and said he went from serious to now critical. they do not give any other insight as to what that needs. is he on a ventilator and none of that we know. it's simply the fact that his condition has grown worse. one of the things that was brought up in the cdc update, that included texas health officials. a question was asked by a reporter, does he have access or do medical authorities have access to any of these experimental technologies and treatments that we heard so much about that have been highly successful in the american patients that have been infected overseas and were treated in america? it was said that the medical staff here where his doctors and family will make that call, but that it is accessible to mr. duncan if they so wish to use it. it is not specified what we are talking about whether it's the previous stuff or something

else, but apparently everything that can be made available mr. duncan and the medical team is being made available according to the cdc. the reporting is thou that his condition has worsened. whether this is part of the course of battling ebola within him, that's more of a medical mind to answer. there has been no sign of ebola in any of the other 50 people being monitored here in dallas. fredricka? >> we heard from the cdc earlier that nine people who they say definitely came into contact with ebola or at least mr. dunk an, they are closely monitored and among them were the medical first responders as well as the four people in that apartment. do we know anything about whether they are showing any symptoms or in what way they are being monitored? >> there is no other report of ebola in anyone in the dallas

area. in other words, thomas duncan is described as the index patient. there is no sign of ebola in anyone else. there nine people that include the people with whom he was living for a number of days. they are in quarantine in a private residence and there those the medical personnel who would have initially had seen him and transported him to the hospital in an ambulance. they are carefully being monitored. the rest are those who may somehow have interacted with thomas duncan and as a precaution they are monitoring the people as well, but not as closely. the nine are the ones considered high risk, you could say, but again no sign of ebola anywhere else except with him. this is unfortunate news that his condition worsened. >> it is indeed. thank you so much. continue to keep us posted. >> and this just in, the cdc is at newark liberty airport in new jersey investigating a sick passenger on board a plane. none of the 255 passengers or

crew are being allowed to get off the plane. we are told by the port authority of new york and new jersey, the male passenger was vomiting. we know that it was united airlines flight 998 that came from brussels, the same city where thomas duncan had a connection. the plane landed at 12:15 and has been under quarantine ever since. the patient will be transported by emergency medical services to a local hospital. since the ebola outbreak, it has become protocol for the cdc to be called in any time someone is sick on a plane. we will keep you posted. thanks so much for spending time with us today. more cnn newsroom in 30 minutes. i'm fredricka whitfield. cnn money starts now.

>> america's approximate public health system facing the ultimate challenge. stopping the spread of ebola. does it have enough money to succeed? this is cnn money. >> ebola diagnosed for the first time on american soil. >> this case is serious. >> america's public health machine calling for calm. >> this is not west africa. this is a sophisticated thing. >> no doubt in my mind we can stop it in its tracks. >> stopping it won't come cheep. they committed to battling the deadly disease and the effort to contain ebola in west africa could cost $1 billion. >> if we take the proper steps, we save lives. >> on wall street, investors are bidding up biotechs can experimental treatments and the government and not the