And today, wall street took a beating. The dow fell about 3,000 points, its largest oneday point drop in history. And tonight, americas streets are empty, from new york city to los angeles. Bars and restaurants have been told to close or only serve takeout. The president admitting late today the country may be headed into a recession. As businesses are forced to layoff millions of workers. And the World Health Organization said there is still not enough testing being done. Eome governors say they dont have enough hospital beds. There is a lot of Important Information to report as we come on the air tonight, and our correspondents are covering it all. Ben tracy is going to lead us off tonight from the white house, and ben, the president says these next two weeks are critical . Reporter thats right. This was a very different President Trump today. Gone was the leader who said the virus will pass and everyone should just relax. Today, the president had stern warnings for all americans. This is something. Its an invisible enemy. Reporter a more somber President Trump said the coronavirus could last through july or august and cause a recession. We have made the decision to further toughen the guidelines and blunt the infection now. We would much rather be ahead of the curve than behind it. Reporter the new c. D. C. Guidelines say for the next 15 days all americans should stay home from work and school, avoid social gatherings of more than ten people, and eating and drinking at bars, restaurant, and food courts. But these are recommendations, not requirements. Are you telling governors in those states, then, to close all their restaurants . Well, we havent said that yet. Why not . Were were recommending things. That could happen, but we have not got there yet. Reporter new York Governor Andrew Cuomo says the white house needs to be more clear. This is a national problem, and we need federal leadership. Reporter on a call with the nations governors today, President Trump told them to find critical supplies of respirators and masks on their own, because federal help may be too slow. The president has also said that he takes no responsibility for these slow rollout of testing kits around the country. Asked today to rate his performance of handling this crisis, he gave himself a ten. Norah . Odonnell ben, thank you. Joining us now is dr. Deborah birx. She serves as the White House Coronavirus response coordinator. This is her first interview since the outbreak began. Doctor, so good to have you. Are these guidelines getting us closer to what would amount to a national or nationwide quarantine . So, these guidelines that we came out with today are very much based on models. So weve looked very carefully at what actually works. What can you layer together to have the biggest impact . This is a virus. We can conquer this, but it will be strictly on the basis of our behaviors and what we do. Odonnell why 15 days . What do you think will happen if everyone follows these guidelines . Could we stop it . We can level it out. This is a roadmap to prevent your grandmother from getting sick. This is a roadmap to prevent your grandmother from having to be hospitalized, or your grandfather. This is a roadmap of what everyone can do today to really protect the people who have been on cancer treatments, to really ensure that they can survive through this epidemic. Odonnell what happens if people dont follow these guidelines . Well, we can see an example of that. You know, italy was slow to introduce these guidelines. Its very much like dr. Fauci said today if youre not uncomfortable, if youre not really putting together and asking for sacrifice, youre going to get behind the virus. And if you get behind a pandemic this virus is about two to three times more contagious than flu. So thats why we want everybody to do everything that they can. We know that we have a large group of millennials between 25 and almost 40. They are really key to this. Theyre a social group. So that no more than ten is very much focused on them, to really say, even if youre home, dont have gatherings of more than ten. Odonnell as you know, there are large number of cases in new york. The governor of new york said, i dont believe were going to be able to flatten the curve enough. Do you agree with that . We can flatten the curve even in new york, but the amount of behavioral change that its going to take its going to take every american to sacrifice for one another. Odonnell you see all the numbers. Whats your biggest concern . My biggest concern is that americans everywhere will think that theyre okay, theyre not at risk, and they wont follow these guidelines. And what we know is, even if you perceive that youre not at risk, you put others at risk by not following these. Odonnell dr. Birx, thank you so much for your time. Thank you. Odonnell and today the Surgeon General says there is chance the u. S. Could be hit as hard as italy if we dont take this crisis seriously. Cases here in the u. S. Have exploded. Look at this. There are now more than 4,300 cases confirmed with more than 80 deaths. Mola lenghi joins us from new yorks Grand Central terminal, which is much quieter than usual tonight. Mola . Reporter yeah, norah, typically Grand Central would be bustling for the rush hour commute. This is nowhere near the level it normally is, illustrating just how those closings, cancellations, and social distancing is really bringing American Life to a standstill. Tonight, a nation on lockdown. Businesses shuttered and streets empty, all in an attempt to slow coronaviruss spread. Today, new york, new jersey, and connecticut announced a coordinated social life shutdown. More than 30 million without access to theaters. Restaurants and bars will only be open for takeout and delivery. But new yorks Governor Andrew Cuomo is calling for federal leadership. Rather than having us scramble, of every local and State Government trying to figure it out on its own. Reporter david honor is the owner of freds restaurant in manhattan. We have been here 23 years. And i have had people that have worked with me for 23 years. And the longer its closed, know, people are going to probably leave the city. Reporter School Closures are affecting more than 35 Million Students in at least 35 states. Closed schools and cities including new york and houston handed out free meals to children now spending their days at home. Public schools in los angeles also closed their doors today. The nations Second Largest School District serves 600,000 students. 80 of them live below the poverty line, and 30,000 are homeless. Grabandgo meal sites wont be open until wednesday. L. A. Superintendent austin beutner. We want to do it right and prepare carefully and make sure everyone involved is safe. Thats taking some time to prepare for. Reporter and San FranciscoJust Announced a state of emergency, allowing people to only go grocery shopping. And tonight, coronavirus testing is ramping up across the country, more than 38,000 so far. Dr. Anthony fauci, the nations top Infectious Disease center, endorsed the need for mass isolation. The best way to address it would be to do something that looks like it might be an overreaction. It isnt an overreaction. Reporter as you can imagine, still a ways away from returning to normal. New york city mayor bill de blasio says he hopes to reopen the School Districts by april 20th in new york city, but he cautions they could remain closed for the rest of the academic year, norah. Odonnell that is a frightening scenario for many parents. Mola, thank you. Today, Financial Markets suffered historic losses. The dow falling almost 3,000 points. Thats the biggest oneday point drop of all time. Jill schlesinger tonight is outside nasdaq headquarters in new york. Jill, this has really been just a stunning day. Reporter absolutely. Reminds me when i was a young trader in 1987, that crash day when the market was down 22 . Today the second worst percentage loss, 13 , and you know, it was only a month ago when the markets and the economy seemed to be chugging along. Since then, we have slammed on the brakes, gone into a skid, and who knows, maybe were going to find ourselves in a ditch. If there is one thing investors hate, its doubt. And right now, with coronavirus, even traders are being checked on wall street, where there is as much uncertainty as there is on main street. Sadly, one thing is for sure the economy will slow to a crawl, which could lead to job losses in the millions. Already, actor ethan niven has no income because his l. A. Theater company has gone dark. I dont want to say were starting to panic, but we are starting to worry where well get our next meal, where well get our next job. Reporter Michelle Clark is a single mother in illinois who had two restaurant jobs. Today she has no work at all. I dont know how im going to pay my bills. I dont know how im going to pay my rent. Reporter the fed has stepped in to keep funds flowing, but coronavirus adds a new twist, says economist diane swonk. There is no Way Companies can plan for this full stop in activity. Reporter congress is trying to come to the rescue, but with the president saying he may be sliding into a recession, theres not a lot of time left for both the nations small businesses, which employ about 60 million people, and lower wage, nongovernment workers. We need people to have their wages covered. We need paid sick leave. Thats why its so critically person that we get cash in individuals hands, so that they dont lose everything. Reporter there is no way to fully prevent hardship. We just hope that there is help for everyday workers as soon as possible. Norah. Odonnell i know, that is the biggest concern. Jill, thank you. Tonight, doctors and nurses on the front lines are worried if americas 6,000 hospitals will have enough beds and supplies to handle the outbreak. New yorks governor is now calling for military bases to be used as makeshift care centers. Carter evans has more on the race to respond. You now have this influx. You cant handle that. You overwhelm the hospitals. You have people on gurneys in hallways. That is what is going to happen now if we do nothing. Reporter new York Governor Andrew Cuomo is sounding the alarm. We could see scenes like this from hospitals in italy unfolding here in the u. S. Our hospitals are not prepared. Reporter Bonnie Castillo is executive director of National Nurses united. She says the biggest problem right now is a lack of medical supplies. Reporter nurses and doctors are already getting sick. Yes, thats true, and more will. And as more get sick and have exposure, we get sidelined. And then who is there to take care of the patients . Reporter to get through the outbreak, its estimated medical workers will need 3. 5 billion n95 medical masks. Currently, there is a National Stockpile of only 12 million. Depending on the severity of the outbreak, 200,000 to 2. 9 million intensive care beds could be needed. Right now, there are fewer than 65,000 i. C. U. Beds available in the entire country. The shortages are already causing some doctors to change the way they treat patients. Im rapidly attempting to convert my practice from an in house practice to answering patients concerns on the phone. Reporter in order to continue treating patients, doctors tell me its critical that efforts to slow down this virus succeed. They say if people dont isolate now, hospitals in this nation will be overwhelmed. Norah . Odonnell all right, carter. Thank you. In seattle today, the first patients were given shots in a Clinical Trial of a potential vaccine for covid19. About two dozen potential vaccines are being developed around the world, including one at the National Institutes of health, and another at the walter reed center. Outside of washington david martin went there to show us how it works. Reporter this is the part of the coronavirus that can actually infect you. This is the part up here that latches on to your lung cells. Reporter dr. Kayvon modjarrad is a director at the Walter Reed Army institute of research. This is obviously magnified. What is the actual size of this . About 20,000 of these could fit on the head of a pin. Reporter hes testing a potential vaccine that would block the virus from attaching itself to your lung. If it cant get into your lung cells, it cant cause the disease. Reporter the race for a Coronavirus Vaccine will take 12 to 18 months to run. So, Lieutenant Colonel mara kretschamndietrick is working on a drug that people who already have the disease can take. What were aiming to develop here is an antiviral treatment that will kill the virus and actually cure them of the lasease so they dont further spread it to the rest of the community. Reporter she says an existing drug used against ebola may work against the coronavirus as well. Its ready for a Clinical Trial in humans, and once those Clinical Trials show that its effective, then it will be available for wider use in humans, yes. Reporter it hasnt yet been proved effective, but it could be used as an emergency treatment. David martin, cbs news, Walter Reed Army institute of research. Odonnell and there is still much more news ahead. On tonights cbs evening news, living with the coronavirus. Seth doanes very personal story, including the symptoms that convinced him that he needed to be tested. Plus, an update on the health of tom hanks and his wife, rita wilson. And later, in the worst of times, they are showing the best of humanity. Od swings ows. crying take you to uncontrollable highs. muffled arguing or, make you feel both at once. Overwhelmed by bipolar i symptoms . Ask about vraylar. Some medications only treat the lows or the highs. Vraylar effectively treats depression, acute manic and mixed episodes of bipolar i. Fullspectrum relief of all symptoms. With just one pill, once a day. Elderly patients with dementiarelated psychosis have an increased risk of death or stroke. Call your doctor about unusual changes in behavior or suicidal thoughts. Antidepressants can increase these in children and young adults. Report fever, stiff muscles, or confusion, which may mean a lifethreatening reaction, or uncontrollable muscle movements, may be permanent. Side effects may not appear for several weeks. Metabolic changes may occur. Movement dysfunction, restlessness, sleepiness, stomach issues are common side effects. When bipolar i overwhelms, vraylar helps smooth the ups and downs. This is charlie not coughing, because he took delsym 12hour. And this is charlie still not coughing while trying his hardest not to wake zeus. Delsym 12hour. Nothing lasts longer for powerful cough relief. In so many ways. Which cage free eggs taste fresher and more delicious . Only egglands best. Which organic eggs have more vitamins and less saturated fat . Only egglands best. Better taste, better nutrition, better eggs. Saturpain happens. Aleve it. Aleve is proven stronger and longer on pain than tylenol. When pain happens, aleve it. All day strong. Sure, principal is a fibut think of us as a protect your family as it grows company. A put enough away for college company. And a take care of your employees company. Were a help you ride the ups and downs of the market company. And when its time to retire, were a weve been guiding you toward this all along company. Think of us ashese and mor. Retire, were a weve principal. Retirement. Investments. Insurance. Odonnell our cbs news correspondents often put themselves in dangerous situations to report on important stories. Seth doane is based in rome, a hot spot for the coronavirus, and like nearly 28,000 others in italy, seth has been infected. And tonight, he is telling his story. Reporter this deadly virus, which has shut down cities, challenged healthcare systems, and taken lives, does not discriminate. And if youve ever been to the spanish steps in the heart of rome, you know how unusual coughing a reporter never wants to be part of a story, particularly this one. Six cbs news employees were diagnosed with covid19. And one of them is cbs news Foreign Correspondent seth doane. Reporter after being exposed and developing mild symptom, cough, fever, and health pressure, Italian Health workers in protective gear came to our home to swab test us and have been monitoring symptoms daily. From the moment i learned i was exposed to positive cases, weve take this quarantine seriously, because you have to stop this spread. That means friends dropping groceries, dinner parties via video chat, and across italy. A sense of community, if only from the window. I tried to contact everyone i saw since being exposed, which is emotional and difficult, but vital. It is key that those of us who have mild symptoms not pass it on to those who could be more at risk. We must get tested, decrease exposure, and stop the spread of this in our communities. Norah. Odonnell seth, such an important point. Thanks for sharing your story and for helping all of us with it. Thank you. And we have an update now on Actor Tom Hanks and his wife rita wilson. They both tested positive for coronavirus in australia. They are reportedly out of the hospital, and recovering at a rental home. Up next, americans pitching in. Instead of shutting its doors, a restaurant is making sure that no one goes hungry. Psoriatic a. When considering another treatment, ask about xeljanz xr, a oncedaily pill for adults with moderate to severe Rheumatoid Arthritis or active Psoriatic Arthritis for whom methotrexate did not work w