This is an historic time.

This is going to be a multi-year fight.

Why is it taking so long to get a screening test?

It is not a hoax, it is real.

Something that we have never experienced before.

Wash hands, wash hands, wash hands.

I mean you're the scientist, you're gonna have to tell me.

Welcome, welcome to Science Rules, coronavirus edition.

I'm your host, Bill Nye, and this is the series that brings you the latest analysis

and the science of this pandemic.

To keep you informed, prepared, and calm.

We are all in this together, my friends.

Coronavirus news is a mix bag this week.

The virus has infected more than 100 million people worldwide

with almost 26 million in the US alone.

But the rate of infection seems to be decreasing.

Vaccines are slowly but surely making their way into arms across the country.

But they're still roughly 4,000 people dying every day in the US.

4,000 people a day.

The Earth has just about made one full orbit around the Sun

since we first realized how big a deal this coronavirus is.

But a year later, one huge thing we still don't know for sure

...