What could you do if your data was working for you and not against you? With Bloomberg delivering

enterprise data directly to your systems, you get easy access to the details you want, optimized for

higher level analysis, and financial data experts committed to helping you maximize your every move.

Our data is made for more, so you can show the world what you're made of.

Visit Bloomberg.com slash enterprise data to learn more.

Welcome to Prognosis.

I'm Laura Carlson.

It's day 305 since coronavirus was declared a global pandemic.

Today's main story, health care workers are among the first prioritized to receive a vaccine,

but some are refusing to get inoculated.

We look at why vaccine reluctance extends even to those in the medical profession.

But first, here's what happened in virus news today. The U.S. will require proof of a negative COVID-19 test before allowing visitors to fly into the country from other nations.

That's in an effort to help airlines regain at least some of their most

lucrative international travel. The Centers for Disease Control and Prevention on Tuesday

said it approved the new anti-pandemic measure that will take effect on January 26th. It requires

travelers to receive a test within three days before leaving for the

U.S. and provide written documentation of a negative result. Japan extended its state of emergency

beyond the Tokyo region, encompassing an area that accounts for more than half of its economy.

It's one of several countries where the virus has made a comeback in winter months.

Tokyo cases hit a record last Thursday.

The situation has revived questions about whether it's safe to hold even a limited version of the postponed Olympics in less than 200 days.

Finally, Sweden is tightening the screws after taking arguably the world's softest approach to handling the coronavirus pandemic.

...