AstraZeneca's Covid-19 vaccine study has been put on hold due to a suspected adverse reaction in participant in the U.K.

Tony Green, on dismissing, denying, contracting and spreading the coronavirus.

The United States may soon record as many as 100,000 new cases of Covid-19 a day if the current trajectory of the outbreak in the country is not changed, Anthony Fauci said.

People "shed" high levels of coronavirus early on after being infected, a new study finds, but most are likely not infectious after their recovery begins.

For almost two years, the Democratic Republic of Congo has been struggling to suppress the deadly virus. Now, this outbreak appears to have been defeated.

U.S. health officials raised concerns early Tuesday that positive results that AstraZeneca announced Monday for its Covid-19 vaccine may have been based on “an incomplete view of the efficacy data”...

Genetic data indicate at least two separate monkeypox outbreaks underway, suggesting wider spread.

Our soaring expectations for Covid-19 vaccines — still wondrous weapons in the fight against the virus — are in the process of sinking back to earth.

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Medical sources in the city confirm rate of infection, but say they have been told not to release the full picture to the public.

The Covid-19 pandemic has become the deadliest disease event in American history, with its death toll surpassing that of the 1918 Spanish flu.

A Chicago hospital treating severe Covid-19 patients with Gilead's remdesivir is seeing rapid recoveries in fever and respiratory symptoms, STAT has learned.

The pandemic has been catastrophic. But consider something that may have escaped you: You have witnessed — and you are a beneficiary of — a freaking miracle.

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President Trump's announcement of his Supreme Court nominee offers a case study in what experts say has been the administration’s recklessness in creating settings that could abet the spread of...

After working 27 years at the CDC, I'm perplexed, and saddened, that the agency seems to be sitting on the sidelines for this #coronavirus pandemic.

Behind every reported coronavirus death is a name and a story.

Rick Bright, one of the nation’s leading vaccine development experts and the director of BARDA, is no longer leading the organization, officials told STAT.

In a study in southern Africa which enrolled 2,600 women, participants who received J&J's vaccine were 25% less likely to become infected with HIV compared to the placebo group. The results were not...

The FDA has expanded the emergency use authorization for Pfizer and BioNTech’s Covid-19 booster shot to cover 16- and 17-year- olds, making it the only booster available in the U.S. for teens in this...

Physicians at the epicenter of Italy’s #Covid19 outbreak warned that medical practice may need to be turned on its head — with care delivered to many #coronavirus patients at home.

Queen Elizabeth II made a special address to the UK and the Commonwealth about the coronavirus pandemic. The pre-recorded speech marked her fifth special televised address to the public.

A computational biologist estimates there are likely already at least 500 to 600 coronavirus cases in the greater Seattle area.

It's old news that vaccines don't cause autism. Can a massive study change minds this time?

If we could watch what’s really going on in hospitals, there would be no more complacency.

Four cases of a serious, sometimes fatal infection that have bedeviled public health investigators for months appear to have been linked to a room spray sold at Walmart.

Top Trump officials actively lobbied Congress to deny state governments any extra funding for the Covid-19 vaccine rollout last fall, despite frantic warnings from state officials that they didn’t...

At a 10% hospitalization rate, all hospital beds in the U.S. will be filled by about May 10. As #Covid19 cases saturate nearly every state and county, health care workers would burn through the...

President Trump on Friday said the U.S. will pull out of the World Health Organization.

The agency’s new guidelines are wrong, so states have to step up on their own to suppress the coronavirus.

The U.S. is still in the clambering-into-the-life-raft phase of responding to #Covid19, and thinking clearly about what to do is still difficult.