Sacha Pfeiffer

Novavax, a vaccine maker in Maryland, is becoming the 10th coronavirus vaccine candidate to enter the final phase of testing, called phase 3.

The trial is taking place in the U.K., where researchers plan to enroll up to 10,000 adults of various ages in the next four to six weeks. Half the participants will get a placebo and half will get the company's vaccine.

At least a quarter of participants will be over the age of 65, the company says, and it will also "prioritize groups that are most affected by COVID-19, including racial and ethnic minorities."

Earlier this year, the Navajo Nation Reservation was a major hot spot for coronavirus cases. Now, it's seen a day without a single positive case.

It's a turning point in its battle against the virus. Navajo Nation President Jonathan Nez attributes that to Navajo leaders and citizens heeding the advice of public health officials.

"All we did as leaders and public health professionals is we accepted [the] recommendations from the CDC, NIH," Nez says. "We took one step more, putting those recommendations into public health emergency orders, making them law."

President Trump visited Wisconsin on Tuesday despite calls from officials, including Gov. Tony Evers and Lt. Gov. Mandela Barnes, to stay away.

The Trump administration says it will now spend billions of dollars to help states make COVID-19 testing more widely available, a move meant to address months-long complaints about test shortages.

But here's the puzzle: Many labs say they have plenty of tests. So what's the disconnect?

Turns out a "test" is not a single device. COVID-19 testing involves several steps, each one requiring different supplies, and there are shortages of different supplies at different times in different places.

Updated at 10:10 p.m. ET

One month ago today, President Trump declared a national emergency.

In a Rose Garden address, flanked by leaders from giant retailers and medical testing companies, he promised a mobilization of public and private resources to attack the coronavirus.

"We've been working very hard on this. We've made tremendous progress," Trump said. "When you compare what we've done to other areas of the world, it's pretty incredible."

But few of the promises made that day have come to pass.

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Among the people whose lives are being turned upside down by the coronavirus are many pregnant women.

As they prepare for one of the most intense and emotional experiences of their lives, they face the possibility of delivering babies in hospitals filled with COVID-19 patients — and plans they've made for where to give birth and who will be there with them are often now in question.

As COVID-19 spreads rapidly through the United States, many American doctors could soon be making the decisions that overwhelmed health care workers in Italy are already facing: Which patients get lifesaving treatment, and which ones do not?

When a redacted version of special counsel Robert Mueller's report on Russian interference in the 2016 election was released to the public and Congress on Thursday, the effects of Russian influence efforts through social media became clearer.

Part of the information in the report included examples of material that Russian trolls used, and one particular image stood out to Ronnie Hipshire, a retired coal miner in West Virginia.