Good to have you with us. The world is fast approaching 5 million cases of the coronavirus, with most here in the United States, but thats not stopping the country from continuing its push to reopen. In the coming hours, every u. S. State will have partially lifted their stayathome measures. And while infection rates are slowing across most of the u. S. , cases continue to rise in at least 17 states. But President Donald Trump says thats not necessarily a bad thing. Take a listen. When we have a lot of cases, i dont look at that as a bad thing. I look at that in a certain respect as being a good thing because it means our testing is much better. So, if we were testing a Million People instead of 14 Million People, we would have far fewer cases, right . So, i view it as a badge of honor. Really, its a badge of honor. Well, despite what mr. Trump says, the u. S. Is nowhere near the worlds leader in testing per capita. Data shows several countries are ahead of the u. S. As states reopen, the centers for Disease Control is issuing its guidelines for reopening. A document that had previously been shelved by the white house. Heres cnns chief medical correspondent, dr. Sanjay gupta, speaking about it earlier. A lot of its going to look familiar because of the gating criteria, saying states should have 14day downward trend, plenty of testing in place, things that weve heard. But you get a sense from this document that its really leaving it more up to the discretion of governors now as opposed to being a sort of national, cohesive strategy. So, they dont want this to get a lot of attention. And two states that were among the first to reopen have come under fire for their reporting of cases. Florida and georgia are being accused of publishing misleading statistics and limiting Public Access to covid19 data in their states, raising questions about their counts. Meanwhile, President Trumps Reelection Campaign is actively recruiting doctors to serve as surrogates who will help support his messaging on health care and his response to covid19. The push comes as mr. Trump faces criticism over his use of the drug hydroxychloroquine to prevent getting the virus. Jeremy diamond has more. Reporter President Trump defiant, defending his decision to try and ward off coronavirus by taking an unproven drug, hydroxychloroquine. Many, many doctors, doctors, many doctors came out and they said, its great. Now, you have to go to a doctor. I have a doctor in the white house. I said, what do you think . And its just a line of defense. Im just talking about as a line of defense. Im dealing with a lot of people. Look at all the people in the room. Reporter the president ignoring an fda warning against using hydroxychloroquine outside of a hospital setting, which said the drug has not been shown to be safe and effective for treating and preventing covid19. But i think its worth it as a line of defense, and ill stay on it for a little while longer. Im just very curious myself. But it seems to be very safe. Reporter and rejecting a Clinical Study that found hydroxychloroquine ineffective against coronavirus. There was a false study done where they gave it to very sick people, extremely sick people, people that were ready to die. It was given by obviously not friends of the administration. And the study came out. The people were ready to die. Everybody was old. That with a phony study, and its very dangerous to do it. The fact is, people should want to help people, not to make political points. Its really sad when they do that. Reporter that study conducted on hundreds of patients at va hospitals was partially funded by the Governments National institutes of health. Trump also falsely claiming the drug is riskfree. What has been determined is it doesnt harm you. Its a very powerful drug, i guess, but it doesnt harm you. Reporter but Clinical Trials have shown the drug can cause serious heart rhythm problems, a heightened concern for a president who has a common form of heart disease, according to the results of his physical exams. Dr. Sean conley, physician to the president , revealing in a new memo that he concluded the potential benefit from treatment outweighed the relative risk. Vice president mike pence on tuesday saying that he is not taking hydroxychloroquine, even though his press secretary did test positive for the virus. So he is not following the president s lead on this questionable decision to start taking hydroxychloroquine as a preventive measure. President trump, though, even as he dives in head first into this hydroxychloroquine pool, he is not following the advice that Public Health experts are saying could help prevent the spread of coronavirus, and that is the issue of wearing a mask. The president on tuesday was noncommittal about whether he will wear a mask when he visits a ford manufacturing facility in michigan on thursday. Ford, though, has said that it did inform the white house that anybody who goes into that facility is required to wear a mask. Well see whether the president follows that directive. Jeremy diamond, cnn, the white house. So, lets bring in dr. Dennis carroll, who joins us now live from washington. He served as an Infectious Disease expert for the American Government for decades, heading up u. Saids emerging threats division, overseeing threats from ebola and avian flu in dozens of countries around the world. Thank you, doctor, for joining us. Its a pleasure. So, President Trump is now doubling down, defending his decision to take hydroxychloroquine, despite there being no evidence to suggest in any way that it prevents covid19. The president also claims this antimalarial drug is used by frontline workers and does no harm. Whats your reaction to all of this . Well, its obviously at this point not a surprise to hear him double down on something that has no basis in reality. You know, there is very strong evidence now that, one, hydroxychloroquine does not really bring the miracle cure that he was touting a month ago. And weve seen from studies that theres also risk to patients with certain conditions that, in fact, could exacerbate the infection and cause death. So, at one point he said, what do you have to lose . Well, clearly, there can be a loss of life through inappropriate use of this drug. So, its a remarkable display of irresponsibility by a president who we look to for good advice, and right now, he continues to tout fiction. And of course, that is the concern that others might follow his lead and do this. And as you say, the risk is very high. I did want to get your reaction to this new research out of south korea offering new hope, perhaps, of immunity for covid19 survivors. Preliminary findings show patients who retested positive for covid19 after being discharged are not contagious. What should we take from that study . Well, again, it still remains a remarkable mystery as to what extent being preexposed to covid19 virus provides immunity or not. And we should take each of these early reports with a cautionary tale. We need to be careful to understand. You know, immunity that were looking for can be shortlived in many different kinds of infections, and they can be long term. Obviously, what we need to get the kind of protective effect were looking for is an immunity that would last for at least years. And at this point, we have no indication about just how protective or not an infection might be. So, the story is still out. Its going to be key to controlling this virus. If, in fact, we do find that there is substantial immunity acquired through infection, it really elevates two things one, those people who have been infected sort of decrease the pool of potential populations for the virus to spread to, but it also lays down a really good metric for thinking about how effective a vaccine might be. The Washington University model often cited by the white house projects there will be 147 deaths in the United States by early august due to this increased mobility were seeing across the country as these states open up, but dr. Christopher murray, who heads that up, thinks Wearing Masks could make all the difference. But of course, President Trump hasnt been wearing a mask and is not committing to wearing one in the future. Why do so Many Americans push back on this . And whats the Science Behind the wearing of a face mask . Well, remember, this is a respiratory disease, which means the virus the large percentage of the virus thats in our body is in our respiratory tract, our lungs. And when we cough and sneeze, that is how we spread the virus. So, obviously, the smart thing to do is, by wearing a mask, we limit if we are infected, if im infected, i have a mask on, when i cough and sneeze, i really trap that virus inside the mask and protect the people around me. And from the other side, if im not infected, but a person close to me is, and they cough and sneeze, i lower the risk of my sort of inhaling that virus. So, its really a protective barrier. Its nothing more than that. And again, as we know, the virus travels by air, by way of our coughing and sneezing. Its a smart, commonsense thing to do, very lowtech, very simple, and very inexpensive, but extraordinarily effective. Thats why when you go in the hospitals, youre always seeing nurses and doctors and Health Workers wearing protective masks, because there are so many diseases that are spread by this route, and its a proven clinical effectiveness. Dr. Dennis carroll, thank you so much. It is an honor to speak with you. Appreciate it. Well, it was a pleasure being with you this evening as well. And you can follow the latest developments of the coronavirus pandemic in the u. S. And around the globe. Anderson cooper and dr. Sanjay gupta host a cnn global town hall, coronavirus facts and fears. Thats 8 00 p. M. Thursday in new york, 8 00 a. M. Friday in hong kong, only here on cnn. Well, the u. S. Treasury secretary and Federal Reserve chairman were grilled by the Senate Banking committee on tuesday. Steve mnuchin warned lawmakers of potential longterm damage to the economy if states remain shut down. And Jerome Powell added that congress may have to authorize additional spending to get the economy going again. But democrat Sherrod Brown asked mnuchin why the Trump Administration is so eager to send employees back to work during uncertain times. Take a listen. Pushing people back into the workplace. Theres been no National Program to provide worker safety. The president says, reopen slaughterhouses, nothing about slowing the line down, nothing about getting protective equipment. How many workers should give their lives to increase the gdp or the dow jones by 1,000 points . No worker should give their lives to do that, mr. Senator, and i think your characterization is unfair. When you have a situation where people are unemployed for long periods of time, that can permanently weigh on both their careers and their ability to go back to work and also weigh on the economy for years. Equally so with small and mediumsized businesses, which are the jobs machine of our great economy. This is the biggest response by congress ever and the fastest and the biggest from us, and still this is the biggest shock we have seen in living memory. And the question looms in the air of is it enough . Well, meanwhile, all 50 u. S. States will soon be partially reopened or have eased restrictions. In northern michigan, some businesses will be reopening friday. Cnns Miguel Marquez takes a look at the Safety Measures many are taking to keep their employees safe. Reporter the Auto Industry, all important to the michigan economy, slowly inching back into gear. You opted for the face shield, the goggles and the face mask. Yeah, yeah. You want to stay as safe as possible. Reporter safety in making employees feel comfortable. A Temperature Check before they start. Some areas cordoned off to avoid crowding. First steps for Companies LikeVintech Industries that supplies parts for the Auto Industry worldwide. If you dont feel safe, what can i do to make you feel safe . And if you dont feel safe, then go home, right . What are you going to do . Reporter employers everywhere facing similar questions how to reopen with covid19 still a threat. When do you see full production . You know, i dont see full production i dont know. I dont think its going to come back full production until january. Reporter vintech says it doesnt expect new orders for at least another couple weeks. Because automakers are inching back to work. This video from Fiat Chrysler shows new entrances, thermal scans, masks, sanitizer, and socially distant work and break stations. The new workplace reality. In stations that we could not physically move, we had to hang barriers to create the distance for the employees. Reporter the industry may be stuck in first gear for a long time. The university of michigans Research Seminar and quantitative economics forecast detroits big three automakers sales wont get back to near where they were until late 2022. A slow recovery in the Auto Industry will have enormous impacts across the entire state. Financially, its very difficult. My business is closed. And you dont have any income. Reporter laura wynn built her own business, two girls and a bucket, cleaning homes and offices for 26 years. Eight employees and three family members count on its income. I worked too many years and too hard to lose it. Im a very hard worker. My girls are hard workers. And this has been a livelihood. So, when you take it away, what do you have . Nothing. Reporter winn faces a double hurdle, clients who might not want others in their homes or offices, and others who may not want to spend on cleaners for now. Reopening michigan wont come easy or fast. Miguel marquez, cnn, macomb county, michigan. And adding to michigans troubles, roughly 10,000 people are being told to evacuate their homes after two dams failed under heavy rain and flooding. And if you look into the distance there, you can see the water rushing over the top. Authorities warn, the water level could surpass Historic Records in the coming hours with some areas possibly under nearly 3 meters of water. The timing of the dam breaches is, of course, especially difficult, as officials are trying to prevent the spread of the coronavirus. Teams are screening people at emergency shelters. The uk has the highest number of coronavirus cases and deaths in europe. That is adding increasing pressure to Prime Minister boris johnson, as he looks ahead to reopening schools. Cnn is live in london, next. I just want to ask you a question on brazil. Brazil . Yes. In third place now, catching up to russia in second place with number of cases. Are you finally considering a travel ban from brazil and latin america . We are considering it. We hope that were not going to have a problem. The governor of floridas doing very, very well testing. In particular, a big majority come into florida. Brazil has gone more or less herd. You know what that is, herd. And theyre having problems. President trump there saying he is considering a travel ban on brazil, and that country reported its biggest daily jump in new coronavirus cases and deaths on tuesday and currently has the third highest number of cases globally. Cnns Shasta Darlington has the latest now from sao paulo. Reporter in brazil, recordhigh deaths and covid19 infections setting it on the path to become the worlds next hotspot. On tuesday night, the Health Ministry recorded 1,179 deaths, a new record. The number of new confirmed cases also a record at 17,000. U. S. President donald trump says hes considering a ban on travel from brazil, while in sao paulo, officials have declared a fiveday holiday to try and get people to stay home. Brazilian president jairo balance naro is looking at expanding the use of malaria drugs to treat coronavirus and has yet to name a new health minister, even though his second one resigned last week. Shasta darlington, cnn, sao paulo. So, when will it be safe for children to go back to school . That is the question on the minds of parents and educators all around the world. And we are learning theres not a one size fits all solution here. In south korea, its a big day for some students. School is back in session for those in third year through high school as part of a phased reopening. There was some concern about reopening schools after a cluster infection was reported at nightclubs in seoul, but Officials Say students and teachers will have their temperatures checked twice a day to keep everyone safe. In france, its one step back. Some schools had to close after suspected cases were detected in the Community Just one week after reopening when the lockdown ended. According to officials, 40,000 schools are open and nearly 1. 5 Million Students have gone back to school. But 70 of Primary School students are still being homeschooled. The uk announced more than 500 additional deaths from the coronavirus on tuesday, as the british governments strategy is under new scrutiny. Johns Hopkins University counts more than 35,000 deaths from covid19 in the uk and more than 250,000 cases, making it the worsth