Viewers here in the United States and all around the world, im Natalie Allen and this is cnn newsroom. Thank you for joining us. Once again, the u. S. Sets a record for new Coronavirus Infections in a single day. According to Johns Hopkins university, more than 63,000 new cases were reported thursday. The u. S. Has hit record highs a half a dozen times in just over two weeks. New cases are surging across 2 3 of the country, california, texas and florida all set new records for single day deaths thursday. Dr. Anthony fauci did not mince words when discussing the countrys performance. As a country, when you compare us to other countries, i dont think you can say were doing great. Were just not. Youd have to make the assumption that if there wasnt such deviivisiveness that we wo have a more coordinated approach. U. S. States and governments are staggering under the rates of this pandemic. Cnns Martin Savage has that and more coronavirus headlines around the kun 2ri. Reporter three states set new grim records in number of deaths in a 24 hour period due to coronavirus. California, 149, texas, 105, and florida with 120. Also in florida, the department of Health Reporting today an additional 8,935 new cases as well as their highest Positivity Rate for coronavirus testing in weeks. I know weve had higher blips and now were higher than may and the beginning of june. Reporter the almost daily record setting surging setting long lines and causing officials to challenge the plans to open schools. At a time when quite frankly restaurants have been emptied out, shuttered, it is counter intuitive to mandate students to return to school at full capacity. Despite such concerns, disney world opened today for pass holders. The president plans to visit florida, not to talk corona concerns but to travel to dural to talk about drug concerns. States are in danger with being overwhelmed with personal protective equipment again in short supply. 10,000 people are hospitalized in texas with the states republican governor calling it a massive spike. When you look at the number of people who have been hospitalized over the past couple of weeks, you can see that there may be more fatalities coming. Reporter arizona is reporting a record high spiking coronavirus emergency room admissions on top of a shortage of i beds. All three states are in trouble. President trump plans to hold a rally in New Hampshire triggering fears that the state could end up like oklahoma where Health Experts are reporting a recent jump in coronavirus cases following the president s rally in tulsa last month where supporters ignored advice to wear masks and socially distance. Getting back to the state of florida, the governor seems to be backing off somewhat on his hardcharging effort to have brick and mortar schools reopen. He did say if parents were concerned and wanted to keep their students home and study online, that should be an option for them. He seemed to support the Republican National convention that will be in florida at jacksonville, that they might hold it at an outdoor venue such as a football stadium. Martin savidge, cnn, atlanta. Health experts have warned from early in this pandemic that some people infected show no symptoms but can still infect others. Heres cnns brian todd. Ive had oxygen coming in up my nose coming out of the wall. Reporter before he was hospitalized, Jason Hartelius believes he had it in his system for a weechblgt a danger he warned about as he was recovering. You may say youre fine. You may say youre low risk. You might get it, go back to work, never have any symptoms. You could give it to people you work with who gets very sick and die. Reporter that danger is coming into greater focus. A new study published by the National Academy of Sciences Says people who are so called silent spreaders could be responsible for about half of all coronavirus cases. This makes control of covid19 particularly challenging. With covid19, people are infectious before any symptoms so most people who are transmitting the virus are doing so inadvertently without even realizing they are sick. Reporter Allison Galvani says that means the silent spreaders are going through life before it shows themselves. She says younger, seemingly Healthy People are disproportionately responsible for psy loent transmissions, a key question now given this new study, how do we combat silent spreading. Experts say it means doubling down on things. Distance. If you do have to go out, try to physically separate yourself from others and try to avoid the crowded indoor spaces and wear a mask to reduce the fact that you could transmit the virus to others. Reporter this new information on psy loent transmission does not mean we should panic or think that everyone we see is a silent spreader of coronavirus. We still think this is spread by close, prolonged contact. We shouldnt take from this if youre in the streets, grocery store, youre maintaining distance this puts you at greater risk. Still, tracking silent spreaders of coronavirus is going to be a huge challenge in the months and years ahead. This new study says more than 1 3 of silent infections would need to be identified and isolated to suppress any future outbreaks. The author says we are not there yet pointing out theres not enough Contact Tracing available and not enough tests for people who have symptoms let alone people who are asymptomatic. Brian todd, cnn. Janine anyez has become the third latin american head of state to test positive after the president s of brazil and honduras. She announced it on thursday on twitter saying she feels strong and will selfquarantine for 14 days. Brazils president bolsonaro on the left was diagnosed earlier this jeek brazil is reporting tens of thousands of new covid19 cases over the past 24 hours bringing its total infections to 1. 7 million and the death toll to almost 70,000. Brazil has the soaked highest number in the world behind the u. S. Cnns bill weir has more for from us brazil. Reporter it has been another grim week here in brazil and another day brought another at least 40,000 covid19 confirmed cases and another 1100 or so confirmed fatalities as that number reaches close to 70,000 now. And president bolsonaro, the most famous covid19 patient in brazil, continues with his selfprescribed remedy, that is hydroxy clor row kin, antimalarials and other vitamins. He encourages his other country men and women to get back to work telling them their chances of a severe result are close to zero, quote, unquote. The congress behind me, theyre working remotely but would protect the residuals. President bolsonaro vetoed most of the efforts. Facebook and instagram took down several accounts spreading false information. Many were tied back to bolsonaro supporters and his two sons. Yet another similar shade of the politics between brazil and the United States in the middle of this pandemic. Bill weir, cnn, brazil. Hong kong is tightening coronavirus restrictions as it deals with what may be a third wave of infections and its closing all city schools as of monday. Health officials reported at least 42 new cases on thursday. The overwhelming majority are locally transmitted. Krchbs will ripley has more from hong kong. Reporter during this pandemic hong kong has really felt almost like a safe zone. They took action very early on to close the poirders, test everyone coming into the city for covid19 so they pretty much have effectively been able to prevent the virus from coming in from the outside. But what they have not been able to get a handle on is local daily cases. The numbers are going up every day. 7 Million People live here. Only 7 deaths, 1400 people with it. If this goes up and people are Walking Around and dont know they have it, Health Experts know those numbers could shoot up exponentially and that could be very bad for hong kong. They have been able to identify three clusters, in restaurants and bars, in taxies and senior care centers. In each of those areas theyre testing more people, imposing more difficult rules. At bars and nightclubs, only four people can silt together. People are supposed to wear masks at all times if not eating or drinking. Theyre trying to trace who have ridden in taxis. A lot of people pay cash, dont get a receipt. At senior centers, they need to test more people. They need to test more workers to figure out who has the virus and get them isolated as quickly as possible. Will ripley, cnn, hong kong. Japan is reporting a spike in new cases with 357 just on thursday and tokyo had 243 cases on friday. The capitals largest single day increase in infections since this outbreak began. Tokyos governor blamed the spike on increasing tested and he expects the trend to continue. Japan has 21,000 cases and almost 1,000 deaths. The australian state of queensland started blocking visitors from entering a few hours ago. The Northeastern State and the neighboring state of victoria are trying to stamp out coronavirus by isolating the Southeastern State of victoria where clays are flaring up. Millions of people are in lockdown again for the next six weeks. California broke a daily record for coronavirus cases. We go inside one hospital coming up here to see how desperate things can get. Audible is my roadtrip companion. Its kind of my quiet, alone time. Audible is a routine for me. Its like a fun night school for adults. I could easily be seduced into locking myself into a place where i do nothing but listen to books. I never was interested in historical fiction before, but im obsessed with it now. There are a lot of like, classic and big titles that i feel like i missed out since i dont have time to read, mean i might as well listen. If i want to catch up on the news or history or learn whats going on in the world, i can download a book and listen to it. Because i listened to her story over and over again, i made the decision to go ahead and follow my own dream, which was to help other veterans. I think theres like 180 books in my, in my library now. It changes your perspective; it makes you a different person. Its true, its so true. To start your free 30day trial, just text listen25 to 500500. A serious warning from scientists in london. Coronavirus could lead to a wave of brain damage. A study by researchers at University College london details how covid19 can cause neurological complications. Among them, stroke, nerve damage, and potentially fatal brain inflammation. Some Patients Experience whats described as temporary brain dysfunction, but the virus does not appear to draektly affect the brain. Doctor, thank you for coming on and good morning. Good morning, natalie. This is a very Troubling Development. What can you tell us . How much is known about it . So we knew there was a potential for the coronavirus to cause brain damage from sars in 2003 and mers in 2012, but the numbers were small. And then when the first papers came out from wuhan in early january, they suggested about 56 patients in their group but no symptoms. Whats not clear is whether it was due to low oxygen levels, very sick with sepsis or was there actual brain damage in the patients . Our study found that some patients presented with inflammation of the brian. This may be due to over stimulation of the nervous system. We have seen this before particularly in children after virus infections. A larger number of strokes than expected and although some are elderly, a number had no real risk factors. It seems in covid19 patients the block is much thicker and stickier than you would expect and it may be that the virus actually affects the lining of blood vessels so theres a double whammy risk of causing strokes. Then these patients with delirium, which means confusion or disorientation and in these patients scans are normal and what it is is Software Malfunctions to the brain due to low oxygen level, sepsis or a combination of all of these things including the immune system. The final group was the patients with giuillen berry syndrome, weakness in the legs and arms. The numbers were small and this was a small group of patients we were following. It sounds so terribly disturbing, but these cases that youre seeing, is it in the very sick who have coronavirus . No. So some of the very sick ones on intensive care units had these, but we had a number of patients where the respiratory infection was relatively benign or mild so i think the message is that in any patients presenting with these neurological syndromes, one must think about covid19 as being a potential risk factor and one must check the patients for these. Yes, because im going to ask you, how does this complicate the care that doctors and hospitals provide . What will they necessarily have to look out for now determining any brain issues . Yeah, no, i mean, i think obviously apart from keeping aware of these neurological complications, the other problems are practical ones. If you have somebody in an intensive care unit on a ventilato ventilator, getting a scan will be difficult. Then you have the problem of cross infection. There are practical difficulties. I think if doctors and physicians are aware, they can look out for these complications which makes looking out for the patients very difficult. You need more research and studies looking out for the underlying symptoms so you can have rationale for the complications. Because its only been around for a few months, how long could it take to determine the longterm damage that this may cause with brain function . Yeah, no. This has been explosive. I was a Junior Doctor when the aids epidemic started in the early 80s which came on gradually. This has been explosive. Our knowledge and publications are coming through with this, they will develop protocols for this complicated group of patients. We thank you very much for your time and expertise on this Troubling Development as it is. Dr. Hadi manji in london. Thank you very much. Thank you very much. Pathologists have found blood clots in almost every organ during autopsies of coronavirus patients. I think one of the important things that we recognize in covid very early on, both clinically as well as in the autopsies, was that there definitely is a propensity for clotting. The clinicians recognize clotting in lines and various large vessels. What we saw at autopsy was sort of an extension of that. The clotting was in the large vessels and lts in the smaller vessels. This was dramatic. Although we might have expected it in the lungs, we found it in almost every organ we looked at in our autopsy study. Theyve been able to look at the organs for many of the victims. U. S. Health authorities are sticking with their guidelines for reopening schools. Next, what the president had to say. Crafting our authentic fragrances begins with ingredients from the earth. To create fragrances infused with natural essential oils. Air wick scented oils. Connect to nature. I got this Mountain Bike for only 11. Dealdash. Com, the fair and honest bidding site. 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Transfer your Service Online in a few easy steps. Now thats simple, easy, awesome. Transfer your service in minutes, making moving with xfinity a breeze. Visit xfinity. Com moving today. Welcome back to our viewers here in the u. S. And around the world. Im Natalie Allen. This is cnn newsroom. The u. S. Set a new record thursday. More than 63,000 in just one day. That according to Johns Hopkins university. New u. S. Case numbers have reached highs many times in recent days. New highs also thursday. Three states set new records for coronavirus deaths in a single day. California, texas, and florida. Nevertheless, President Trump is headed to florida in the coming hours. He has several events scheduled including a private fundraiser. Were going to take a closer look at the situation in california. Cnns kim la has a look inside a hospital bordering mexico exploding beyond its walls for cases. She cant even get out of bed. When folks say its a war zone, a war zone of what . A war zone of us trying to combat the covid19. Reporter the front line in this battlefield. Craziness. Reporter medical center. This is intense. Reporter ceo Adolph Edward is a former air force officer and iraq war event. I have seen this when we were in iraq. Reporter now hes built them on american soil to handle a crush of covid cases his hospital no longer has room for. Air conditioned tents in the triple digit desert heat. Elten throw is getting people in. 85 is latino. 1 in 4 live in poverty. Per capita it has three times that of los angeles and the death rate is three times higher than los angeles. Is it crazy to be working in a tent in america . Yeah. Its crazy. Well make it through. Reporter inside the hospital it is exhausting. We visit the sickest patients in the icu. Severe cases. Reporter every single patient in this 12 bed icu have covid, 11 of them survive with ventilators. Can you explain what youre wearing . Its