remains in a coma, says the substance was a type that act on the nervous system. and a medication that's an antidote to some nerve agents and pesticides. they say navalny's doctors are still uncertain. >> thank you. the top of the hour. i'm anderson cooper. some positive signs in the wake of the coronavirus. just over 34,000 reported on sunday. nearly four out of five states, either hold a steady or showing decline, when compared to a week ago. the average number fallbug low 1,000 per day. and today the world health organization and unicef are announcing that children 5 and under should not be made to masks. that they're less susceptible to the virus and less likely to spread it to others. as those could face stricter

punishments including expulsions as officials should try to stop the spread. they show the first confirmed cases of a human being reinfected with coronavirus. senior medical correspondent is an emergency medicine physician. elizabeth, what do we know about this person. >> so, let's take a look at what happened with this gentleman. i'm a 33-year-old in hong kong. he tested positive march 26th and again august 15th. these details matter, in some ways, more than that. in march, he was sick for three days. in august, he was asymptomatic. the infectious disease experts show the first infection -- this is only one person of course -- obviously we'd prefer people not get reinfected.

he may infect someone else the second time around. but it is good news for the vaccine that his case turned out this way because vaccines usually mimic what happens in real life. so, if it means you get a vaccine and you could get re-infected but couldn't get sick, that would be great news. >> if you've been sick, are you immune and if so, for how long? how long does it last? does immunity mean you don't get it re-infected or you do -- does this tell us that immunity tells us if you don't get re-infected, it may not impact you in the same way, it won't be as difficult for you? >> this is the question everybody has on their mind, especially of the 42 million people who have been effected by this virus. in theory, that means you can't get infected during that period

of immunity. how long does that last? there's been speculation it could be several months and could be longer, like mers and sars, similar 92 coronavirus. so, that's what we're trying to understand here. there's a couple of other questions. number one, how were they able to keep this patient's information and sequence the virus again. i think that's interesting and certainly we don't have the capacity for most patients to do that. and did he have immunity the first go around? we think most people have a robust immune response? but what's not clear is did this gentleman have an immune response that would have protected him or was he an out liar? but when you look at the global implications, you're talking about one in millions. this is really something that's insignificant until we see a greater percentage of similar cases. >> and with flu season upon us,

how much of a threat is to the nation's emergency rooms and hospitals? they were under immense strain at the height of the pandemic. the concern is you present too, an emergency room, and how do you and the doctors know if it's flu or coronavirus? >> well, luckily we do have rapid flu tests that allow us to identify flu pretty quick. but that's probably the biggest concern heading to the cold and flu season. is this something i can get checked or something we can manage on our own and everybody's on edge. they're available now. that's to be something that everybody takes care of immediately to prevent uncertainty too, have one less thing to worry about. >> thank so much. appreciate it. sources say the white house raised the fast-tracking before phase three trials.

this came up with a meeting. house speaker nancy pelosi, who was in the meeting, warned against cutting corners. the administration has denied any fast tracking the virus for political purposes. doctor is a cardiologist and executive vice president at scripps research institute. the idea of skipping a phase 3 trials of a vaccine, how dangerous is that? >> it's quite dangerous, anderson. unfortunately, now the problem with the vaccine. it magnifies with what happened with the convalescent plasma yesterday. you're talking about lack of efficacy. we need to have those trials complete before we start inoculating millions of people. >> explain that.

if it's already gone through phase one and two, and it seems to work, given the emergency nature of what's going on, how important -- why is phase three so important? >> well, we don't know it works yet. all we know is it produces an antibody response. and some of the vaccines a key cell response. but in order to know if it works, it needs to show that people who get the vaccine can't get infected. and in addition, the issue is when you start to have a vaccine that produces antibodies, there can be untoward results, such as antibody-dependent enhancement or immune complex disease. so, there are adverse reactions of any vaccine that have to be considered. >> the fear also is if it turns out, if there is an emergency-use authorization and it's pushed out and people start to get the vaccine, it certainly adds to the doubters about

vaccines and already a high percentage of people say they wouldn't necessarily get a covid vaccine. >> right. we have a big problem because insurveys of people who show about a third are afraid to have a vaccine or just won't have it. and this is just going to add. because the lack of credibility of the fda stand fing for the evidence and data, as evidenced yesterday with the plasma story, will just undermine the credibility we would want for a vaccine, when it's indeed shown to be safe and effective. >> let's talk about what happened yesterday, the emergency authorization for plasma from recovered patients. previously, a couple days before, the fda said that that was not going to happen. the president tweeted, saying, suggesting its deep-state actors within the fda trying to hold this up for political reasons and all the sudden he announced last night, it's been approved.

>> right. so, this preprint by the mayo clinic earlier in the month, that was deemed as the reason for this emergency-use authorization. but when it was reviewed last week by tony fauci and frances collins, they, appropriately, felt the evidence did not support any emergency-use authorization. moreover, it doesn't show any improvement of survival by any reasonable criteria. this is a preprint of an observational study. its exploratory, and the conclusion of the 35 per 100 people saved is preposterous. even if it was all there with a randomized study, which it isn't, the best would be is three, four, or five people. so, this was completely out of bounds. >> and dangerous, if it's a

precedent of pressuring the fda, you're saying. what's going to happen next time around with a vaccine with their political pressure before the election? you're saying if the fda is willing to bend on the plasma, what will happen with the vaccine? >> yes. the caving of the fda commissioner, steven hahn, to this willingness to declare the survival improvement and emphasizing, during the press conference, and having all the wrong numbers, no less inadequate evidence to support any of it, this is really worrisome. you know, i've worked with the fda over decades now. i have never seen anything like this, anderson. that is, an fda commissioner who would basically take, not just fl flimsey data but there's no randomized trial to support this. and the only thing that gets at

the 35%, a relative reduction, is going through subgroups of subgroups of exploratory datedau, torturing. this isn't right. >> it's more alarming than i realize said. thank you. >> sure. >> wasting no time. president trump hits the stage in charlotte, north carolina after being formally nominated for re-election. and they will not issue a platform. essentially saying whatever the president wants to do, they're fine with that. the question is what does he want to do. the post master general denies sabotaging the postal service leading up to the election. armo is always at the ready. so when they got a little surprise... two!? ...they didn't panic. they got a bigger car for their soon-to-be-bigger family. after shopping around for insurance, they called usaa - who helped find the right coverage for them and even some much-needed savings. that was the easy part.

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president trump has now been formally nominated to lead the party for another four years. he spoke as the republican national convention kicked off today in north carolina. his remarks, which were riddled with many false claims, took place about an hour and a half ago. he did express the importance of the 2020 election. >> this is the most important election in the history of our country. this is the most -- you know, for a long period of time -- well, 2016, how special was that evening? was that one of the great? that was one of the great evenings. but we have to be careful and we have to win. our country is counting on it. >> cnn has learned the republican national committee will not release a new platform and will instead support president trump's agenda. trump campaign did release a second-term agenda.

this is the first specific lists. some of the goals are vague. and many mirror what he promised to do in his first -- and here to discuss, cnn political commentator, the former chief of staff under reince priebus. i mean, people always make fun of the party's platform, because it's like who reads the party's platform, but normally there is a party platform. what do you make of them deciding not to do it this time? >> this was really a logistical issue. conventions are two weeks. we watch the second week, but every year there's rules, resolutions and there are committee meetings for a platform and that platform comes forward and is voted on. but with the pandemic, with

restrictions, the rnc chair, mcdaniel, made the wise decision there were not going to be enough delegates in charlotte last week to debate for a platform. there's a rule where they can say lelgt let's move forward with the 2016 platform. in the end, the candidates say what they want to say anyway and they talk about their agenda anyway. i think it was a smart move logistically and the president put out what is actually his agenda yesterday. >> doesn't it raise -- for a president who, twice in interviews, has been given the opportunity to explain why he wants to be re-elected and what his priorities are, in two interviews he's kind of, hasn't done a great job of really actually being able to enunsiate anything? his health care plan, he keeps saying there is one, is yet to appear.

>> yeah, look, i think they addressed that and i think there was a huge contrast between the democratic convention and the republican convention. the democratic convention had basically no issues. you should like joe biden, he has empathy. we really don't like donald trump. we're not really talking to the voters who cost us the election in 2016 at all. and the contrags you're going to see is donald trump talking about the things he stands for, lots of speakers talking about a second-term agenda. it's going to be much more policy heavy. i don't think democrats want to get into a policy debate. they have the whole four years of president pchsz term and they don't want to get into green new deal, manufacturing jobs. >> do you really believe, though, that this is a policy-heavy convention? we just heard the president speak and it was basically a rerun of all his most recent

greatest his hits of just attacking mail-in voting, attacking the credibility of the postal service, the mail-in voting, claiming that if it's universal mail-in voting, that they'll only send to democrats, not republicans. there are a lot of false hoods in there. doesn't seem like that's the trajectory and tone he's having, it seems more scorched earth against democrats and talking about him as the law and order president, no? >> he was speaking to the delegates here and i think the programming this week, at least what the campaign has said is it's going to be focussed on what his agenda is. everyone should see the things he stands for and wants to do. specifically on jobs. manufacturing jobs in particular is a huge contrast for joe biden on that. when joe biden was nominated, i

was concerned as a republican, because i thought he was one of the few democrats that could win over the voters that cost hillary clinton the election. and then we watched their convention and they just ignored it. they had hollywood people on there. i think you're going to see a lot of focus on those types of voters and policy specifically for those voters talked about this week that inconvention. >> we'll see. appreciate it. thank you very much. his donor and post master general, lewis dejoy is on capitol hill saying the attacks are, quote, not helpful. it's time for the biggest sale of the year on the sleep number 360 smart bed. can it help with snoring? i've never heard snoring. exactly. no problem. ...and done save 50% on the sleep number 360 limited edition smart bed.

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for the second time in less than week, the post master general is back, testifying under oath. today, lewis dejoy is facing a tough grilling from law makers in the house. he's been questioned about postal changes since june. democrats are especially worried that his cost-cut measures will threat voting by mail for the election. dejoy, who's a major donor, is pledging to hold off on changes until after november's election. and he reached out to urge them to stop attacking mail-in voting. he also defended the changes and denied they were politically motivated. many democrats remain skeptical of dejoy's motives.

>> i want to begin by assuring the public that the postal service is fully capable and committed to delivering the nation's ballots securely and on time. this sacred duty is my number one priority between now and election day. >> according to this document, these delays are not just a dip. this document warns the post master general of significant and wide-spread drops across the board. and first-class marketing, periodicals and other categories. this document shows that these delays are not a myth. or conspiracy theory. as some of my colleagues have argued. these steep declined did not start in april or may. when the corona crisis hit us but in july, when mr. dejoy came on bort and began making his changes.

very concerned with the deterioration in service. in fact, we're seeing a big recovery this week. and in fact, that report i requested that report be put together. oddly enough, we didn't have measurement briefings at an executive level like this before. my whole executive team was involved in looking at what the underlying circumstances were and we're focussed on fixing it. we're starting to see a nice recovery. >> is the post master general sabotaging the election by removing mail boxes? no. they have more than adequate capacity to handle vote by mail. if everybody sends in their mail, that's still less than one day's average volume. didn't you tell the board that

you had in fact had contact with the trump campaign to stop their attacks around the post office? >> i have put the word out to plea that this is not helpful? >> so, you did have contact with the trump campaign, for a good purpose? >> i'm trying to -- when you say the trump campaign, i have not spoken to trump campaign leadership. in that regard. i've spoken to people that are friends of mine that are associate would the campaign. >> joined now by vermont candidate, bernie sanders. senator, what do you make of post master dejoy? he says he didn't speak to the trump campaign and now he says he's speaking to friends and that there's this recovery happening. this week with all there delays

but inrecovery is based on the recovering from his own actions. >> look, anderson, i think the best indication of what's happening is to listen to what donald trump said a couple of weeks ago. what he said is that he wants to cut funding for the postal service. he wants to sabotage -- he basically said that he wants to make it harder for people to cast mail-in ballots. that's what he said. so, if that is what the president of the united states says, i kind of think that is the policy that his pal a major campaign contributor, is pursuing. but i would say, anderson, that just a few hours ago, at the republican national convention, trump said, and i think it's important we take a deep breath and hear what he said. he said, and i quote, the only

way they can take this election away from us is a rigged election, end of quote, donald trump. that's what trump just said and he said that before. what does that mean? it means that trump is saying that despite the fact the last poll i have seen has him down 10 points nationally, he's losing, according to recent polls in pennsylvania, michigan, wisconsin and florida, states that he has to win. what he is saying is, look, the only way we're going to lose this election is through a rigged election. and that means that, if on election day he wins, that's great. but if he loses, he really doesn't lose. in other words, you have, for infirst time in my lifetime, a president of the united states saying i cannot lose this election. if i win, great, and if i lose, it's rigged. and if it's rigged, guess what? i may not leave the office.

and i think this is an issue we have got to spend a lot of time talking about. i know not everybody out there agrees with me. they don't agree with joe biden. they don't agree kamala harris and that's fine. but i would hope that the american people understand that millions of people have put their lives on the line, and sometimes died, and came home wounded to defend american democracy. and we now have a president who is behind in most of the polls that doesn't need say -- i'm not saying that. he could win a fair election. but to say that now being behind all the polls, the only way he can lose is if the election is rigged is a major effort to undermine american democracy and the faith of the american people in their election system. this is an outrage. and it's an issue that has to be dealt with. >> you know, he chose, as you said, today, first day of his

convention, his first remarks, rather than -- a lot of republican operatives have been saying this is going to be a hopeful convention, looking to what his agenda's going to be. he spent the bulk of his time, trying to suppress the vote. i mean, he is claiming that states that have universal ballots, states where the state sends ballots to every household so they can cast their vote, send them in the mail, he said what maybe they're only going to send them to democrats, not republicans. he's claiming, as he always has -- i spoke to the secretary of state of washington state, who's a republican, who says you know what? their mail-in balloting is very successful. doesn't favor democrats or republicans. equal representation and incidents of fraud are statistically insignificant. in the millions of votes cast. >> and this is a republican secretary of state? >> yeah.

>> and i can tell you just in vermont last week, we had our primary elections. largest voter turnout ever for a primary election. most people, overwhelming majority voted by mail in. nobody, win or lose, nobody thought there was a problem. so, the point i'm getting and you ask me about the postal service, and obviously, if you listen to everything that trump is saying, of course he's trying to undermine the postal service. but even more scary than that, one thing to try to destroy the postal service, that's pretty bad. but even more frightening than that, what he is saying is the only way i can lose is if the election is rigged. so, what happens if, on tuesday night, the 3rd, you report on cnn that trump has lost michigan and wisconsin and pennsylvania, has lost the popular vote, the electoral college? he's getting on the air and saying oh, no, we didn't lose

that election. it was rigged. what happens then? i think the american people have got to make it clear that hey, you know what you're not going to destroy our democracy. if you win, fine, you win. but if you lose, you are leaving office, period. >> cnn learned that he may issue emergency authorization of a vaccine before phase 3 trials, or there's been discussion of that. we saw what happened just yesterday. after the fda not issuing non use of plasma for people, now they have issued emergency use for plasma, under pressure. i r you concerned about the president pliticizing the vaccine before election? doesn't need to be tested in 10s of thousands for safety. we're just going to put it out? >> we could go on for three hours discussing all of that.

this is a president, who from day one, has rejected science in terms of how we have to deal with the pandemic. he has attacked scientists. he has withdrawn from the world health organization. and he lies every single day. bottom line is, this is -- you are responsible for the health and well being of over 300 million people. you've got to rely on scientists and doctors. surely trump doesn't know the answers. you rely on doctors and scientists and you don't politicize the cdc, the center for disease control, the fda. that has got to be left in the hands of the best scientists who make the best decisions they can for the health and well being of the american people. >> senator bernie sanders, i appreciate your time. thank you, sir. >> thank you. the mayor of tuscaloosa shutting down all bars as coronavirus cases spike in alabama. and alabama is not alone. as students hold parties at

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husk luceau's mayor just ordered all bars to close effective 5:00 p.m. local time today. it's a response to a letter sent to the university of alabama, calling the rise in coronavirus cases on campus unacceptable. alabama's president warned all students to follow safety protocols or risk possible suspension. last week large crowds were seen outside bars, prompting angry responses from the school's athletic director and an alabama football player. penn state has been criticized just days after resuming in-person classes. and several videos shows them partying without masks or social distancing. some students are calling on penn state to go virtual. today the university started

conducting randomized testing to track asymptomatic carriers. zachary mccay is the penn state student body president. they want the school to go virtual. they both join me. thanks for being with us. have you talked to university officials about their concerns and do you think they'll listen? >> thank you veer much for having us today, anderson and i hope you and the family are doing well. we've been in a lot of conversations with administrators and i've been very hopeful. yrb have trusted a lot of the plans that we looked at over the summer and they would be carried out effectively as possible. i'll be completely honest. you have to wonder did the university know students were going to act like this and were going to fue going to follow human nature? and the answer is yes. 20% of students responded they

would not want to wear masks in class. you have to ask yourself if they're not ready to wear one in clas, can you imagine what they're going to do out of class. but then to shift the blame on to students, it seems outrageous. >> are all classes online? >> jaw yeah, so, we've talked to university officials and right now ra's are shouldering the majority of the blame. we have one of the densest student -- >> ra is a resident advisor. >> yes. and they're being tasked with crowd control and that's not what they signed up for. they're not being tested regularly and they're not even being given hazard pay. we think the university should make the responsible decision, which is to cancel the on-campus semester. we think that's going to save lives and the only option left.

>> so, you wouldn't support staying on campus and doing classes online? you think people should not be on campus? >> i think you have to consider the incentive. so, if they're encouraged to stay on campus, the problem doesn't necessarily go away. but by canceling in-person classes, you lose the incentive of staying on campus and encourage some of the off students to leave and you have to acknowledge there are some students who can't for this or that reason. and send those on-campus students home, i think you'll see a decrease in the number of cases. we need be on top of this. >> and the reality is -- >> go ahead, michael, quickly. >> we have 70% of the people on campus right now that haven't been test said and they're only doing 1% of testing of students every day. so, right now the plan is not working. we love penn state and want to see decision that protects our community. >> thanks very much.

continue to follow it. more than a million acres scorched by wild fires. could get much worse with weather conditions across the state. plus, wisconsin man is fighting for his life after police shot him in the back and in front of his children. president trump officially securing the votes for renomination as president. all week long we're covering the big speeches at the republican national convention. beginning at 7:00 p.m. eastern live on cnn.

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in kenosha, wisconsin, two police officers are on leave and investigation underway after a young man was shot by police in the back as his children looked on. the man is jacob blake. the video is disturbing. here it is now. you could see police following blake as he walked to the driver's side of the vehicle and as he leans in the vehicle, police officer holding on to his shoot seemed to shoot him. seven shots are fired. the wisconsin lieutenant governor confirmed he was shot seven times in the back. we paused the video. it is graphic. his uncle called the shooting outrageous, who was he threatening. he had a tank top and no shorts on. he had no weapon and he was going to back to the car because the children needed to be checked on. protesters smashed windows and set vehicles on fire.

my colleague don lemon joins us by phone and the host of the new podcast silence is not an option. it is a disturbing video. i'm wondering what your reaction is? >> well, just as you said, it is disturbing. my reaction is that here we go again. and the time that it is happening, right when we're in the middle or beginning of the republican national convention. we've just had the democratic convention and we've seen unrest happen all over the country. and in the summer of i call it the george floyd unrest, it's just an indication, anderson, that we're going to be dealing with this for quite sometime unless we figure out how to come together when it comes to criminal justice, justice when it comes to policing, and also defunding the police. i think this is a terrible message going into the republican national convention. and i mean for the republicans. because when you look at video like this, it is hard to say

okay, well we don't want to defund police. most people don't want to defund police. even democrats. the people who are out there protesting, some of the more progressive wing of the democratic party, they want defunding of the police. but if you talk to moderate people, they don't want it. but it is going to be tough for republicans to say we don't need police reform, what we need is law and order when we actually need a combination and for everyone to get on board and figure out, we need to stop shooting people regardless of what people are saying, the police union saying oh, well we need to know what happened. yes, we did. when you look at the incident, it is hard to justify, anderson. >> and to that point, the police were called to what was called a domestic violence allegation. we don't know what occurred before the video was shot. to that point the wisconsin governor issued a statement saying while we don't have all of the details yet, what we know

for certain is that he's not the first black man or person to be shot at the hands of individuals in law enforcement in our state or our country. and he's getting pushback. kenosha police calling it wholly irresponsible and the video circulating does not capture the intic @asies and we hold is that you withhold passing jum until all of the facts are known and released. i wonder what your response is from the police and the governor himself? >> well, i think from the response is obvious from the poli police. of course you should withhold judgment about what happened before. but the video tells you what happened in the moment. and think about in that video why he was going back to the car. we don't know what was in the car, except we know there were children in the car. that his nephew, who was on --

or uncle said he's going back to check on children. police are supposed to be there to de-escalate the situation and not escalate it. when you have an unarmed man and a number of police officers there and they can't subdue him or stop him. it is a training issue. and as far as the governor, i don't see what is wrong with what the governor said. he is not anti-police because he said we have to figure out how to deal with the black citizens in our community and that is the truth. i think it is tough, if you're saying we don't want police defunded which i go back to most people don't, but the people who want defunding, meaning they want police departments to be retrained and rethought, their words, and they want social workers sent to different communities, this is a case for that. because if there was a social worker sent, this man may still be alive. >> and we lost the connection

there with don. dorn lemon. massive wildfires are taking a toll across california. the danger is not over. 1.2 million acres, i should say, leaving little but ashes. dan simon is in napa, california. >> reporter: these fires continue to rage out of control with tens of thousands of people forced to flee their homes. it is not clear when a lot of the folks will be allowed to return to homes or even if they'll have a home to return to. let me explain where i am. we're in the town of healdsburg. this is wine country. it is harvest season right now and the smoke and the flames will have damaged some of the crops. it is not clear how much. but obviously wine country is going to be impacted in some fashion. over here you could see the fire trucks, firefighters basically waiting for the next assignment. they're weary and they've been working overtime and the state is trying to get more crews in

from other parts of the country. in the meantime, some of the numbers, anderson, have been mind-boggling. some 12,000 lightning strikes over the past several days resulting in hundreds of wildfires. two dozen of them considered major. those fires have been broken into various complexes. there are three of them. and two of the three are considered two of the largest wildfires in california history. the good news as far as this fire is concerned, where we are, this is the lnu complex fire, containment is now above 20%. crews made great progress over the weekend and there was a red flag warning but that has not been canceled. so hopefully crews will be able to build on the progress they've made. >> dan simon, thank you very much. the republican national convention is off and running. nominating president trump for re-election but will skip voting on a party platform. jake tapper is next.

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good afternoon. welcome to "the lead," i'm jake tapper. the post master general louis dejoy is testifying on capitol hill. alexandria ocasio-cortez is asking him questions. let's listen in. >> you have emailed texted called or video conferenced with your former company xpl logistics. >> i have many friends at the company and i've spoken to them casually over several months. >> thank you. now you started as your role as post master general on june 16th of this year. that is a very big job and it has a lot of responsibility. you mentioned meeting with president trump, secretary mnuchin, i can't even imagine how busy that must be. now do you keep a daily calendar? >> i do, yeah. >> you have or your staff made any deletions to