Peter Navarro, frustrated by the snail’s pace response to Covid-19, gave contracts worth hundreds of millions of dollars to politically connected or novice companies, according to a House inquiry.

A review of six million pregnancies in 17 countries found that for many women, childbearing has been unusually risky in the past year, particularly in lower- and middle-income countries.

A drug that unleashes the immune system offers a rare glimmer of hope for those with a cancer that resists most treatments.

A manufacturer in Baltimore accidentally conflated the ingredients for two different coronavirus vaccines, officials say.

The French president rebuffed his advisers in January and opted against more restrictions, betting that inoculation would curb the pandemic. Instead, a new wave of infections is battering France.

Good news for vaccinating children.

“Since the beginning of the pandemic, people were claiming deaths were simply being attributed to Covid when people were dying of other causes,” a federal health official said. “We show that’s not the case.”

The new initiative is an important step in determining whether widespread rapid testing can help curb transmission of the virus.

Wyoming said anyone 16 or over would now be able to get a shot. New Mexico and South Dakota said they would do the same on Monday.

Infected rodents pose no immediate danger to humans, but the research suggests that mutations are helping the coronavirus expand its range of potential hosts.