NYC mayor warns residents to prepare for shelter-in-place order

New York state has the most infections in the U.S. -- more than 1,300 cases of coronavirus including four Brooklyn Nets players.
5:45 | 03/18/20

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Transcript for NYC mayor warns residents to prepare for shelter-in-place order
Good evening. It's great to have you with us on this Tuesday night. Like every other night, this is proving to be a very busy one. The death toll in the U.S. Mounting, at least 100 dead. The cases of coronavirus topping 5,800. And officials believe the number is likely far higher due to the testing that is behind. The white house hoping to send families a check. Tonight, president trump proposing a massive relief plan, promising to go big against the invisible enemy. A $1 trillion aid package. And this evening, images of a country under stress. Empty streets in San Francisco after a shelter in place order. In New York City, an empty times square. And the mayor tonight with an ominous warning of a possible citywide quarantine. Dr. Jen Ashton with what they're seeing in E.R.S. And the Navy readying two hospital ships for possible deployment to U.S. Cities. And Kevin Durant testing positive, with several other players. We'll carefully get through it all again tonight. We begin with whit Johnson on the worsening scene in New York and across the country. Reporter: Tonight, the nation's largest city bracing for more drastic measures. New York's mayor now warning residents to prepare for a possible order to shelter in place. Even though a decision has not yet been made by the city or the state, new yorkers should be prepared for the possibility of a shelter in place order. Reporter: The mayor conceding that would pose "Tremendously substantial challenges" in a city of more than 8 million people. I believe that decision should be made in the next 48 hours and it's a very, very difficult decision, I want to emphasize that. Reporter: New York state, now with the most infections in the country. More than 1,300 cases of covid-19. And just today, the Brooklyn nets announcing four players have tested positive, including Kevin Durant. The team says only one player is showing symptoms. Governor Cuomo urging president trump to take action and deploy the army corps of engineers to help construct temporary hospitals, citing the impending shortage of hospital beds. I know what the army corps of engineers can do. They have a capacity that we simply do not have. I said to the president, who is a new Yorker, I need your help. I want your help. Reporter: Today president trump promising to work with the governor. We're dealing with the army corps of engineers should that be necessary. We have them working in some cases, on standby in other cases. Reporter: And the Navy is readying two hospital ships for possible deployment to both coasts to assist with patients who don't have the virus, freeing up valuable hospital beds. At least 22 states activating the National Guard. The San Francisco bay area, heading into another night under that shelter in place order. Whatever we need to do to stay alive, that's what we need to do. Reporter: Peggy ivy, among the nearly 7 million people told to stay home for at least the next three weeks. Except to buy food, medicine, and to exercise. The most drastic steps so far nationwide. My major concern is, am I going to live through this? Reporter: And health care workers on the front lines sounding the alarm, saying they're running out of supplies. It's mainly masks, eye shields, n-95 respirators, gloves, gowns, face shields, goggles, all the things that you need to take care of these folks. It obviously makes a situation where we are in desperate need of these and we actually have to lock them up. Stockings, gowns, all these things are disappearing from hospitals. Reporter: The white house asking construction companies to donate their industrial masks to local hospitals. And the Pentagon making over 5 million masks available immediately, along with 2,000 ventilators. Manufacturers of those vital breathing machines now ramping up production to meet a surge in demand. And the American red cross saying there's a blood shortages as drives are cancelled. Shortages also hurting millions of Americans at the grocery stores. Lines are just extremely long. Shelves are empty. So it's kind of scary. Reporter: A growing number of stores setting up hours for seniors. So many, now ordering household essentials online. Amazon announcing it will hire 100,000 warehouse and delivery workers. Hoping to jumpstart the supply chain. But major grocers like target, Kroger, and publix are warning shoppers. They could see limits on what they can buy. Whit, Dr. Anthony Fauci was asked today, when will we know if the guidelines are working? Reporter: He said it will be tough to track, because you could still see an increase while things are working behind the scenes. He said it could be weeks before we know if the restrictions are

This transcript has been automatically generated and may not be 100% accurate.

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