And now some of the famous people with the disease are describing what it's like.

And Rick Adriano has more.

CNN host Chris Cuomo is revealing the torment of Cove in 19.

This virus came at me.

I've never seen anything like it.

Okay, so yeah, I've had I've had a fever.

You've had a fever, but 10213103 plus, that wouldn't quit.

And it was like somebody was beating me like a pinata.

And I was shivering so much That chip my tooth.

These are not cheap, okay?

And they call them the Rye.

Gore's like Riggers R i g o r s.

Cuomo says he even had a vision of his father, New York Governor Mario Cuomo, who died five years ago.

I'm telling you, was hallucinating.

I My dad was talking to May.

I was seeing people from college.

People haven't seen it forever.

It was freaky what I lived through last night, and it may have it again tonight.

Doctor says may happen, like five times.

He showed Dr Sanjay Gupta his blood oxygen sensor This is a great gift of people who are fighting coat.

I spoke to Dr Oz about the device.

How does it work?

It looks at how the oxygen and the blood is passing through the tip of your finger and it can see through your nail to look at the nail bed.

And by assessing how much auction is there, we could get an assessment of how sick you really are.

Unfortunately, supplies of those oxygen monitors are running low.

The pharmacies we contacted today say they are all out.