Tonight, the mystery children's illness.

The alarming disease possibly linked to COVID-19, impacting kids, putting 15 in intensive care.

A health alert sent out to all doctors in New York City to be vigilant. One dad's heartbreak.

It was the scariest point in my life. There was nothing anyone could do. They prepared me for the worst.

What parents need to know tonight and what it could mean for schools in the fall.

Vaccine whistleblower, a top scientist says he was ousted for raising the alarm with the White House about unsafe drugs and the lack of masks and other protective equipment.

The president unmasked.

Traveling across the country for the first time in months,

the president tours a factory in Arizona recently retooled to make N95 masks,

but he's not wearing one.

Racing to a cure.

Tonight, the first Americans receive an experimental vaccine,

amid word of a mutant strain more contagious than the original strain from China.

Where's the beef and the pork? Wendy's can't keep burgers on the menu at all of its stores,

the higher prices at the grocery store.

Sniffing out COVID. Can dogs detect coronavirus? The Ivy League school testing the power of a dog's nose.

And tonight, our salute to mothers. We'll meet a woman who's not only a hero at home, but also on the COVID front lines.

This is the CBS Evening News with Nora O'Donnell, reporting from the nation's capital.

Good evening and thank you for joining us. As we come on the air tonight, coronavirus infections are still growing in much of the country.

Just as we're learning, there is now a more powerful mutant strain of the virus that is even more difficult to treat.

There are now more than 20,000 new confirmed cases every day here in the United States.

And while cases are declining in the New York City area,

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