Blood drawn from nine people in the earliest days of the pandemic tested positive for the infection. But some experts questioned the results.

Collaborating with devoted colleagues, Dr. Kariko laid the groundwork for the mRNA vaccines turning the tide of the pandemic.

The U.S. surpassed 500,000 COVID deaths on Monday.

Travelers, tourism professionals and medical experts share their perspectives.

The World Health Organization has implemented a new system to name variants of COVID-19 that use Greek letters instead of country names to avoid stigmatizing the regions

The once oil-rich country lacks vaccines and performs few tests as Covid-19 rages, with some people choosing to die at home to avoid hospitals short of electricity and oxygen.

The Trevor Project's 2021 National Survey on LGBTQ Youth Mental Health is the organization's third annual, cross-sectional national survey of LGBTQ youth across the United States. We hope this report elevates the voices and experiences of diverse LGBTQ youth, providing insights that can be used by researchers, policymakers, and the many organizations working to support LGBTQ youth around the world.

New data from Israel suggests a link between myocarditis and Pfizer’s vaccine, but the CDC isn’t there yet.

Combining a multitude of predictions and projections, modeling teams hone the uncertainty.

The country’s official figures grossly understate the pandemic’s true effects. Our estimates, informed by more than a dozen experts’ research, range from very bad to catastrophic.

The country had more than 37 thousand new cases in 24 hours; health system is under pressure

Important immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.

Mink in Denmark are not the only animals that could become reservoirs for the coronavirus to spread new mutations to people.

A newly identified coronavirus may not pose a serious threat, but the finding highlights the need to monitor animal viruses more proactively, scientists say.

This phase of the pandemic, when adults can be vaccinated but young children cannot, is confusing for many families.

These pathogens already kill 1.6 million people every year, and we have few defenses against them

As COVID-19 surged, the social media company pointed users to all sorts of anti-vaccine and anti-mask groups

On Tuesday, Well Being Trust, a national foundation that studies mental health and substance issues, released a new study that found alcohol consumption-related deaths have increased by 13% in Colorado.

Gleyber Torres is the eighth person (and the first player) from the Yankees organization to test positive for the coronavirus this week. All had been vaccinated.

Lead screenings for children plummeted last spring, and stay-at-home orders may have increased household exposure to the toxic metal.

This report describes racial and ethnic disparities in stress and worry, mental health, and substance use during the COVID-19 pandemic.

Five cases of the B1617.2 strain first identified in India have been discovered in Mesa County.

Hair transplants, not so much.