They're living with an invisible illness. Social distancing will save their lives
Updated 2158 GMT (0558 HKT) March 19, 2020
People with underlying medical conditions are also more likely to become seriously ill if they get it.
Some of them are young and most of them may not look sick at all. Millions of them are living with a compromised immune system.
It's estimated that about 3% of the adult US population is immunosuppressed, according to a 2013 National Health Interview Survey. That's roughly 7 million people living with a weakened immune system today.
Some of them have a disease that's weakened their immune systems. Others are taking immunosuppressants for cancer or organ transplants.
Coronavirus has made life a lot harder for the immune-compromised. These are some of the challenges they're facing:
They may not look sick, but they have an invisible disease
Brittania Powell is a college student with a bright smile and a love for the food of her native Jamaica. She goes to class and works at a caterer, but what many don't know is that she's dealing with several conditions they can't see.
On a good day, Powell can walk to class at Columbus State Community College in Ohio. On a bad day, she can't bend her knee enough to walk.
She can wake up to any joint in he