. >> ucsf department of medicine chair doctor robert wachter says until that can happen. he supports an indoor mask mandate for everyone to see. he said people can take their mask off. the second part of the sentence was an unvaccinated. people should keep their masks off like how can you tell and do you really believe that all the unvaccinated people have made that choice are also religiously wearing masks everywhere. i i don't. >> so i think until the cases come down a lot and they're pretty high in the bay area going up pretty fast. i think a mask mandate is perfectly reasonable. and i think is that is the right thing to do it for recommending likely to indoor masking san francisco's public health director says the city is in discussion with surrounding counties about an indoor mask mandate and that will likely be instituted next week. >> doctor wachter says another reason for masking and for vaccinations is because of long-term covid in the risk of getting long-term covid. you never know if it's going to happen. but they said that there was an israeli study that just

doctor robert wachter says not only did you study showed the delta variant is more severe. >> but nowks a native people can pass it on others. that's why he supports an indoor mask mandate for every one of us that we're out of this pickle. it's completely natural for everybody to be unhappy about it. and i'm not happy about that. talking about it. but those are the facts on the ground and you have to respond to the changes san francisco is in discussion with surrounding counties about an indoor mask mandate. doctor colfax says that will likely be instituted next week in the meantime, he has a warning for those most at risk. if you're particularly vulnerable to covid 1965 and over are have other co-morbid conditions. >> i would very cautious >> how i would engage right in in public and settings yeah, that be at risk for covid-19. >> another reason to wear a mask as well as to get vaccinated. if you're not already doctor wachter points to a new israeli study about long-term covid which shows 19% of those studied in that study 6 weeks later still had symptoms. >> live in san francisco. d

wachter says this surge is must worse. does he think indoor mask mandate is coming back. >> i expect what los angeles did, went back to a mask mandate, i'm guessing the bay area counties will do the same thing in the next couple of weeks. might not if the cases plateau and start to come down. unless everyone starts wearing a mask without a mandate i can't see any reason why that wouldn't happen. >>> new this morning a new challenge for merchants in san francisco's chinatown. in the past month more than 100 shop owners have been served with a demand letter or lawsuit spelling out alleged violations of the american with disabilities act. now the san francisco district attorney is investigating to see whether those demands are fraudulent. >> all they have been doing is serve take out orders only and based on the claims i don't see any way possible that this person was going into the establishment looking for food. >> if the lawsuit allegations the person entered the business but never entered that's fraud. >> the chamber of c

bob wachter.k up where we left off, talking about vaccines and not just the number of people of getting vaccinated but the efficacy because pfizer said the efficacy drops over time. does this mean you're more susceptible to getting covid and being hospitalized? >> it means that efficacy drops, and the data seem pretty clear that six months is the cut off first six months, it works really well, and after six months, you begin to have a drop off in total lack of efficacy, so that means protection against any infections. it does seem to drop a little bit. what we have learned in the last couple of days is a little worrisome when it comes to breakthrough infections, so people have asked me for many months, "why do i even care if i am exposed to covid and get a breakthrough infection? as well as i'm pretty confident i'm not going to get super sick and die, and i remain pretty confident i'm not going to get sick and die." one, the viral levels of people with a breakthrough infection are as high as, or a

indoors regardless of their vaccination status up next, we're speaking live with ucsf doctor bob wachter variant herd immunity and the possibility. >> of returning to mask mandates. all that when we >> so we were told that most masking would come to an end when the state reopen back on june 15th. but now majority of california's population lives were indoor masking is recommended once again doctor bob wachter, the chair of the ucsf department of medicine and one of the nation's top covid-19 experts is vaccinated. but doctor year again wearing a mask when you go to work indoors is something wrong and have to go back to doing. i think so. >> i think delta become yet another covid curveball. it is twice good at its job. infecting people as the original virus. and so i don't think it was unreasonable for the state to open things up a month or 2 ago before delta took over. but now the delta is taking over. we have to change in response to a much

majority of california's population lives were indoor masking is recommended once again doctor bob wachter, the chair of the ucsf department of medicine and one of the nation's top covid-19 experts is vaccinated. but doctor year again wearing a mask when you go to work indoors is something wrong and have to go back to doing. i think so. >> i think delta become yet another covid curveball. it is twice good at its job. infecting people as the original virus. and so i don't think it was unreasonable for the state to open things up a month or 2 ago before delta took over. but now the delta is taking over. we have to change in response to a much wily foe. >> so we're going to go back then. even further to when the state was doing that, the color coded tiers. and what was allowed, what was not allowed as that the direction we're headed. >> i hope not. i mean, my hope is that particularly in parts of the state with high vaccination rates like the bay area that a little bit of a step backwards with people being more careful and wearing masks indoors may be enough to get this thing to plateau, but

doctor robert wachter says not only did new study show the delta variant is more severe. >> but now backs a native people can pass it on to others. that's why he supports an indoor mask mandate for every one of us that we're out of this pickle. it's completely natural for everybody to be unhappy about it. and i'm not happy about that. talking about it. but those are the facts on the ground and you have to respond to the changes. >> san francisco is in discussion with surrounding counties about an indoor mask mandate. and doctor colfax says that will likely be instituted next week in the meantime, he has a warning for those most at risk. you're particularly vulnerable to covid 1965 and over are co-morbid conditions. i would very cautious how i would engage right in in public and settings you know, the company risk covid-19 long-term covid is another rsason to get vaccinated and to wear a mask according to doctor wachter. he points to an israeli study which found of those surveyed 19% still had symptoms 6 weeks down the line. >> in san francisco. dan kerman kron 4 news. >> covid hospitaliza

wachter says this surge is much worse than the bump he was expecting with the re-opening.ead of los angeles and mandate indoor maverick use within the next few weeks. reporting live here in san ramon, bob redell. >> this situation because right here the statewide numbers are inching up as well. as of this morning california's positivity rate down here you see 4.5%. and for some that was in mid-february. only . hospitalizations, they are just barely starting to creep up. take a look what we see right here. you can see since mid-april, in this area here, since mid-april for the most part number of people hospitalized from the virus was holding steady. this came morning 2,600 californians are battling the virus in hospitals. >> san francisco's district attorney says his office is launching an investigation into demand letters and lawsuits sent to business owners in chinatown. the letters spell out alleged violations of the americans with disability act but the d.a.'s office is investigating to see if any of them are fraudulent. we go to san francisco for more information on w

bob wachter. we asked him for an explanation.s vaccinated but he's wearing a mask again indoors now and says that you should too. for three reasons. the delta variant is circulating more widely now. two, he doesn't want long term symptoms, something you can get even after a mild case of covid. and lastly he says still there's not enough people who are vaccinated nationwide. >> san francisco is essentially 75% vaccinated. two months ago i would have said to you i think that's maybe high enough to have local herd immunity. that's going to be high enough to bump down the cases even if people do take their masks off. with delta it's not high enough and that's why we're seeing a surge. really delta has changed all the facts on the ground. >> dr. wachter says the surge is much worse than the bump we expected with the re-opening of our state. he thinks the area will follow the lead of los angeles and mandate indoor mask use. he thinks that could happen within the next few weeks. reporting live here, bob redell, "today in the bay". >>> l

bob wachter, the head of medicine at ucsf he thinks the bay area will follow los angeles' lead and require mask use indoors. he's vaccinated and is already wearing a mask again indoors and he says you should, too. he says we're much more likely to be exposed to the delta variant which now represents 90% of the cases here in the united states. he doesn't want to catch that and spread it to someone else who would get super sick, and there's still a risk to yourself even if you're fully vaccinated. >> aim not worried about getting super sick, needing to be hospitalized and dying, but we know that people with mild cases of covid sometimes develop what's called long covid and have symptoms that are pretty troubling even months out so i don't want that. now the doctor points out that san francisco is 75% vaccinated, and he says that a couple of months ago he would have thought that that would have been enough to achieve herd immunity locally in the city, but with delta it's not. he says delta has really changed all the facts on the ground. a month ago ucsf had three covid patients. yesterday it

doctor bob wachter is chair of the department of medicine at ucsf and he explains why he thinks it's a good idea to steal double mask in public. >> most of the places i go to. i don't know if there are unvaccinated people and if there and actually people i can't tell whether they're wearing masks or not. so i think it's reasonable to wear a mask. and i think if you're wearing a mask to try to prevent delta, which is much more infectious and the virus we were battling last year. think it's reasonable to wear 2 i do at work. and i do when i go into the store. >> doctor walker says that while we are not ready for a mask mandate in the bay area right now. he believes we could be in the next few weeks. >> san francisco mayor london breed says at this time there are no plans to reinstate a mask mandate. however, she's monitoring and concerning the concerning rise in covid cases right here now health officials say most new cases are among those who are unvaccinated and case rates or 2 and a half times higher among latinos and african americans and they are continuing to urge people who are

bob wachter, chair of the ucsf department of medicine , tweeted, the delta variant has changed what ittake to reach herd immunity. ucsf lead epidemiologist dr. george rutherford said the state has pushback the goal by several months and that is considered to be a safe estimate. >> herd immunity is a function of how transmissible the viruses. the goalposts have shifted and we are now talking in the mid- 80%. that is not a people eligible for the vaccine, that is everybody. >> according to the vaccine tracker, 53% of the states population is fully vaccinated. san francisco county is at 69%, one of the highest rates in the country. >>> as effort stall for vaccination, president biden is asking people to get their shots . the president spoke at a cnn town hall yesterday. jobina is at the live deskwh go vaccination efforts stall and the delta variant is on the rise. president biden sought to downplay the surge at last night's town hall. he said only unvaccinated people need to worry about the delta variant and urged them to get the shot or shots. but kids under 12 are still not eligible for

bob wachter is here, and he has seen the cdc document. doctor, i appreciate you joining us. warning delta infections are likely more severe. you walked away from it significantly more concerned. tell me why, please. >> yeah, don. everything is a little bit worse than i had understood before i ready the document, when "the washington post" shared it with me about six hours ago. a few things are things that we understood. the vaccinie vaccine efficacy i little bit. that we kind of knew, but the data seems to show that the virus is what they call more infectious than chickenpox. the average person will infect five to eight people versus two to three, which we were used to from the original virus. there's some evidence in the document the severity of delta is higher. that's been a debated point. but at least according to this, the cdc believes that is true. we learned the viral load of people who have been vaccinated and have a breakthrough infection seems to be as high as in people who have non-vaccine related infections, which probably means they are infectious. so it's sort o

it's like doctor wachter told you guys during your 6 o'clock interview, right. nobody wanted it to come to this and it's not yet a mandate, but we're taking steps towards that certainly and contra costa county is one of the local counties that is in this conversation. the local health officer there said the current surge in cases is being driven by unvaccinated working class adults. mostly in the 20 to 50 ypar-old range. and that is why health officers. they're in contra, costa and san francisco and santa clara counties are now urging employers to consider covid vaccine requirements for employees. the officials say unvaccinated workers pose a substantial health risk in the workplace and exposures have led to serious illnesses and deaths. now employers have an obligation to provide safe workplaces for their employees. and are also interested being working in a place that that is safe. it is not putting their their health at risk. so this is something that employers and workers should be able to agree on. >> this trend is not unique to san francisco bay area and c

doctor bob wachter, thank you so much for your time and thank you. >> fully vaccinated. americans could be able to enter canada next month. prime minister justin trudeau announced today that he is planning to open the border for nonessential travel in mid august and canada is expected to welcome fully vaccinated travelers from all countries by early september. trudeau noted that canada leaves all of that 20 countries in vaccination raise with about 80% of eligible canadians having received at least one dose and more than 50% of eligible canadians fully vaccinated. >> all right. time for a look at the forecast taking a live look, this is the view from mount tam and a lot of fog. yeah. a lot of fog. that means which of course means it is pretty cool out there, and then you're also have some concerns to talk about the possible lightning strikes. yeah. we're watching that closely and all this that time of year we start talking about. >> some of the monsoons and. enough the monsoons don't originated over the area of low pressure. it's usually left over. some tropical moisture

i mean, doctor bob wachter is the chair of the department of medicine at ucsf. by the way, i'm going to say it again. he just heard him say he said double mask. that's what he does. >> so it does make a lot of people wonder it. obviously you all have personal choice until or unless we bury does latest, for example. and we're going to talk to an expert more about what this means and what you should do, what what should you do? look for that. coming up at 8.30. so stay tuned for that live interview. >> in the meantime, let's go to sonoma county where a covid outbreak on at a santa rosa homeless shelter now has force health officials to reopen in alternative care center. >> in order to isolate those people who are getting sick. the first positive cases were first detected at the samuel l jones homeless shelter back on july second and then quickly turned into a large scale outbreak. according to the county 59 people now have tested positive for covid-19. there are 26 other possible positive cases that are being reviewed. 28 of the confirmed cases were from people wh

robert wachter who read the leaked cdc document told cnn. >> we can't pussy foot around with this thingwe have to get more people vaccinated. this virus is better at its job than the original. until then, we have to go back to universal masking or this thing will spread like wildfire. >> well, this comes ahead of new data expected to be published publicly today by the credit, dc. let's explain all of this to you in the detail you need with senior medical correspondent elizabeth cohen. i want to be clear. it says may be vaccinated and unvaccinated people can spread this delta variant equally. isn't it a tenfold more protection for vaccinated people? >> absolutely, poppy. i'm so glad you asked that because we need to be very clear about how we're putting all of this, despite all of this terrible news. you are still way better off being vaccinated. if you want to live, get vaccinated. if you want the people in your family to live, get vaccinated. if you care one whit about your community, get vaccinated. it still helps an enormous amount. it is the difference between life and death. so, le

the study was funded by pfizer and it tested 44,000 people we talked with ucsf doctor bob wachter about what this means for people who received the vaccine months ago. >> we see that the the efficacy of the vaccines has gotten a little bit lower. the good news and it's and lower still you know, suppressed haitian sand and older people in nursing homes. the good news and it's still really good news about the vaccine is that its effectiveness in preventing severe cases seems to be holding up really well, even against delta. so that's if i took one part one thing that hopeful out of all this. that's what i took. >> the study comes as pfizer has been pushing for a 3rd covid vaccine dose to boost immunity. so far the cdc says there's no need for a booster shot at this time. despite rising covid-19 cases. the sonoma county fair is going to go on as planned. the county has over 1000 active cases and they're being blamed on the delta variant. and while the fair will still. feel. and look the same. there are some l% rules in place to make sure people are protected. the fair is requiring people t

[inaudible] 4c 1, jason wachter for seat 2, jason palmer 3 had michael win for seat 4. >> chair peskin: thank you for doing the hard work for us. >> president walton: i believe my commitment is to a waiver. >> chair peskin: i was just going tosay that. that works for me but i would love to hear my colleagues , supervisors mandelman and chan. can you support the president's recommendation ? one thumbs up from mandelman. most definitely and as always thank you chair peskin and supervisor walton for making the recommendation, doing the hard work as well and i just wanted to sayto all applicants to , i think that just because there's not a recommendation for you to move forward that you should give up on the work that you've been working on and committed to for all so once to follow for a lot of these coming to the committee that we always encourage everyone to do the work because we need all the helpthat we can get . especially on this issue which moving forward holding our sheriff's county accountable and improving the situation for those who are incarcerated so thank you. >> chair peski