An entire country is under quarantine. This special edition of nightline, covid19 outbreak will be right back of do you recall, not long ago we would walk on the sidewalk all around the wind blows we would only hold on to let go blow a kiss into the sun we need someone to lean on blow a kiss into the sun all we needed somebody to lean on all we need is someone to lean on. Doesnt mean you got to spend a lot because dennys brought back the super slam™. With eggs, hash browns, bacon, sausage and pancakes. All for just 6. 99. The 6. 99 super slam™ is back see you at dennys good evening. Thank you for joining us, im diane macedo. As cases of the coronavirus spike in the u. S. , the call for more covid19 test kits grows louder. Now Health Officials are trying to clear confusion over supply and demand. Heres whit johnson. This, i believe, will be one of the most transformative occurrences in the history of our nation. Reporter the coronavirus taking hold in the u. S. Today. The first containment zone here in new rochelle, new york. Just north of manhattan. State Officials Say 100 to 200 members of the National Guard will be here to help clean and sanitize schools and public areas and deliver food wherever its needed. It is a dramatic action. This is literally a matter of life and death. Reporter that zone of containment consisting of a onemile radius around the Young Israel Synagogue where dozens were exposed. The first to test positive, an attorney. New york state is reeling from one of the largest coronavirus outbreaks in the country. New york citys mayor noting a spike in cases. We have a very rapidly evolving situation on the numbers of cases. And were obviously concerned when we see more cases, but theres a piece of this that actually is in its own way good news. The Testing Capacity is coming online more and more. Reporter tonight at least 288 peop28 people have died, including a 69yearold man in new jersey. According to johns hopkins, over 100,000 cases of covid19 are reported worldwide with 800 in the u. S. As anxiety mounts, medical professionals and potential patients sounding the alarm that there arent enough testing kits to keep up with the growing numbers. This is a big problem. To understand the epidemic we have to know what the denominator is. Reporter at least 6600 covid19 tests have been administered across the country. Dr. Todd elleren outside boston says the hospital has been inundated with test requests. Ive been flooded with calls from patients and providers who have flulike symptoms and are testing negative for the flu and a broad range of respiratory viruses. We have to ask ourselves, whats filling in that gap . I think theres a good chance covid19 is the pathogen. Reporter quick and accurate testing he says more important than ever. Theres no question that at this point when we think we have Community Transmission, when you know theres Community Transmission that means theres a lot more undiagnosed cases than diagnosed cases. We have to up our level of testing. Reporter in washington state, the seattle mayor says the lack of tests played a vital role. Ten Nursing Homes and longterm care facilities are reporting coronavirus. I think as a region and state, we do not yet have enough Testing Capacity. Because we dont have enough testing and the cdc rules about who could get tested and the very few numbers of test kits we had we missed how widely and quickly this disease was spreading. Reporter washington governor jay innslee is bracing for an explosion of cases. There could be 64,000 cases if we dont slow down this epidemic, and the next week would be 120,000 and the next week a quarter of a million. Reporter today the director of the cdc testifying before congress, fielding questions about the delay in getting test kits to Health Providers across the country u. Cdcs focus was to provide testing. Theres a whole new realm of testing. Theres really Laboratory Testing availability to any Doctors Office that can go through labs through quest. I would have loved the private sector to be fully engaged weeks ago. Reporter they plan to collaborate test results with the goal of tracking how Many Americans have been tested and what the test results are. Like cdc, the state and local, Territory Health departments are underfunded. And i want to rebuild the corps capabilities. Wouldnt it be nice if we had a data where every department could see in real time so we could predict whats going on and where to put assets. Reporter most people who get covid19 will experience mild symptoms and never have to be tested. But he did reiterate a warning about travel for certain groups of people. We have recommended that the elderly and vulnerable, including children with chemotherapy and others should reconsider at this point travel. Reporter the elderly comprising a significant chunk of passengers on the grand princess cruise ship, still docked in oakland, california. Over 1,000 of its passengers, aged 70 or older with the most serious cases departing the ship yesterday. Frustration mounting as 269 passengers came off today. Were getting a little discouraged, once we get off, which will probably be tomorrow. We still have 14 more days. Reporter all 19 of the grand princess crew members back on the ship for isolation. And a yellow flag flying signaling the ship is under quarantine. It will go away, stay calm. Reporter today the president attended a meeting with senators on capitol hill to urge calm. He defended the testing process. U. S. Has done a very good job on testing. We had to change things that were done, and the testing has gone very well and when people need a test they can get a test. Reporter trump saying he has not been tested, despite spending time with three people, including his chief of staff, who are selfquarantining after coming into contact with a man who has tested positive. I feel extremely good. I feel very good. Theres no symptoms, no anything. Reporter but the president also had other things on his mind, tweeting about todays primary election, that its going to be a bad day, for, quote, crazy bernie. Senator Bernie Sanders and former vice competing in six co idaho, mississippi, missouri, north dakota, michigan and washington state. There, voters only mail in their ballots. A secretary of state warning voters not to lick them but use a wet sponge or cloth. Its really helpful for us to have all vote by mail, because people can vote from their home. Weve got to make sure that as were doing what we need to do were also keeping our Civic Society alive and well. Reporter on the campaign trail, the specter of coronavirus loomed large. The Biden Campaign offering Hand Sanitizer to attendees at a detroit rally. S sanitizer and hand wipes popping up at some polling locations. Both campaigns canceled rallies in cleveland. They asked the campaigns to cancel their events in cleveland with large groups of people. And thats what we did, due to the coronavirus. Reporter biden, after a strong night with key wins in several contests, including michigan. Looks like were going to have another good night. [cheers and applause] with victories in mississippi, missouri, michigan. Reporter set to deliver remarks on coronavirus tomorrow. And while many are worried coronavirus could escalate to the next level, medical professionals want to assure people that this is not the worse case scenario. We have survived pandemics in the past. 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Do you recall, not long ago we would walk on the sidewalk all around the wind blows we would only hold on to let go blow a kiss into the sun we need someone to lean on blow a kiss into the sun all we needed somebody to lean on all we need is someone to lean on the word quarantine dates back to venice, italy in the 1300s where incoming ships were quarantined. It helped save venice from the black plague. Tonight, italy hopes it will save them again as the entire country is under lockdown from the coronavirus. Heres james longman. Reporter the viral attack in italy feels like an act of war. The governments response equally dramatic. Police checkpoints and mandatory curfews, a virtual quarantine for 60 million people. More than 10,000 infected, the vast majority seniors and the death toll surging. Over 460 lives claimed by covid19. Today that number rising to more than 630, the deadliest toll outside china. Iconic Tourist Attractions empty. This plaza at the coliseum is normally packed with visitors. Now take a look at it, virtually deserted. Reporter on the heels of the lockdown announcement, these chilling images emerge, patients being placed face down to help get lungs oxygen near the red zone. Some hospitals building makeshift tents to grapple with the growing number of cases. The World Health Organization praising italys government for taking such drastic measures. Were encouraged that italy is taking aggressive measures to contain its epidemic. Reporter i was in italy reporting on the story when the lockdown was announced. It took us by surprised. We were concerned we would get stuck too. Speaking to a taxi driver, and hes wearing a mask. Hes really worried whats happening. He has suffered from pneumonia before. Reporter as i was at the airport i was met by long lines of desperate travelers. There are long lines everywhere, and it looks very clear that a lot of people are trying to get out of italy. After two hours i touched down at home in london. The last flight out of rome. Theyve canceled flights until next month. Very sad situation. Weve been given forms, telling us that we have to selfisolate. But so far there doesnt seem to be any kind of health test upon arrival, no scanners. Nothing. Just arrived this morning. As i left this morning, a travel youtuber was just settling in. Thanks for tuning in and see what its like in rome. Reporter he goes all over the world and makes videos about his travels. Was flying from indonesia to italy to meet his mother who just arrived in sicily. Shes been looking forward to this trip for right about a year. We planned this trip. We did the research, believe me. Theres local train. Were not going to go to north italy. We wont go to milan. We going to sicily, way far in the south. We had no idea we would be in a lockdown. Reporter now rupp and his mother are in limbo. Survive, we will survive. We have been looking at flights to get out. Hough, other people on our tour, their flights have been canceling one by one. Theyre it trying theyre trying to rebook, rebook. Reporter ironically, he was also in wuhan china in november, a month before the viral outbreak would lockdown the city. I went to wuhan in november, just about a month after that is when the corona covid19 outbreak was announced. Seems like i bite the virus nea. Now im in the middle of it. Reporter im in an airbnb ive got my books, the uk government has not mandated that i have to do it, im not forced to do it, but it does make the most sense given that i was in italy. As for jason and his mother, theyre also spending time in an airbnb. When they are actually able to get on a plane and back home still anyones guess. Were still going to enjoy our time in italy the best we can. Incredible story, james. Thank you. And now were going to go over to our chief medical correspondent, dr. Jennifer ashton to answer some of your questions, but first, we just saw in james story people documenting their lives under selfquarantine. How effective are these twoweek periods of isolation in spreading, in stopping the spread of the virus . In general, when you talk about these social distancing measures, they can be effective as we say flattening the curve. So that means slowing the spread, protecting the other vulnerable populations, like those people who may have contact with, lets say, the elderly. And it buys us time. So how much of a help this will be is tbd. Its to be determined, because time is a factor. Now i want to get to some of our viewers questions. If im in a situation where i cant wash my hands right away, is Hand Sanitizer the best option until i get to a bathroom . Some claim sanitizer doesnt do anything to. Thats incorrect. It is true if you can get to a sink, soap and water is preferable. People are overthinking this. Wash your hands with soap and water for at least 20 seconds, dry your hands well, if thats not possible, use an alcoholbased Hand Sanitizer. Keep your hands clean. It will be interesting to see what happens to the rate of other infections like influenza, because people are so focussed on hand hygiene. The next question, what kind of precaution at home, what kind of vitamins should i be taking . And should i be stock up on food and water . First part of the question with vitamins, theres no proof that vitamins protect us from any virus. But things we can do, get enough sleep, getting regular exercise, that has been associated with a lower risk of getting the common cold virus for example. You know, and eat beiing well actually can help keep our immune system where it should be. The second question, what should you be stock up on, the same things you would be getting if there whyere a major blizzard. Hoarding not necessary. Enough for two weeks. Thats what the cdc is saying. Are we safe to eat in restaurants or pick up food from starbucks . What risk are we at . We cant live our lives in a plastic bubble. You have to evaluate certain behaviors and say if i alter this, what kind of risk is involved and what kind of benefit. This nice person wants to know about the incubation period. She says we see a lot about what happens when you have the coronavirus but nothing about what happens when theyre not contagious. With a cold or flu, its 24 hours after the fever is gone. We dont know the transmission dynamics. One of those things is how long someone can be infectious after testing positive. We just had a small study this morning that suggested the incubation is just over five days with 97 of people infected showing symptoms by two weeks and certainly by 11 days. Again, were still learning that, but five days is on average. Not everyone will show symptoms. Theres so much false information out there, its great to get reliable answers. Do stay with us for continuing coverage on the coronavirus. Tweet us questions with asknightline. Well be right back. Est . Taking metamucil every day can help. Metamucil supports your daily Digestive Health using a special plantbased fiber called psyllium. Psyllium works by forming a gel in your digestive system to trap and remove the waste that weighs you down. Metamucils gelling action also helps to lower cholesterol and slows sugar absorption to promote healthy blood sugar levels. So, start feeling lighter and more energetic. By taking metamucil every day. Seaonly abreva cany to help sget rid of it in. As little as 2 1 2 days when used at the first sign. Abreva starts to work immediately to block the virus and protect healthy cells. Abreva acts on it. So you can too. Liz, you nerd, cough if youre in here shhhh. I took mucinex dm for my phlegmy cough. What about robs dry cough . Works on that too. And last 12 hours. 12 hours . 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