Three vaccinated U.S. Senators reported coronavirus infections on Thursday, adding to the growing number of breakthrough cases among American politicians. The positive tests were announced by Sen. Roger Wicker, of Mississippi, Sen. Angus King, of Maine, and...

A decision on booster shots for the approximately 13.8 million Americans who received Johnson & Johnson’s single-shot coronavirus vaccine is likely to take weeks, according to people familiar with the issue. Federal health officials are waiting on...

If you’re pregnant and worried that getting a COVID-19 vaccine might trigger severe side effects, you can relax. New research shows that pregnant women and new mothers don’t suffer more reactions after a shot than other women...

Could the constancy of a sympathetic ear help guard your brain against the ravages of aging? Yes, claims new research that analyzed data on nearly 2,200 American adults and found those in their 40s and 50s who...

If you suffered a bout of COVID-19 and your lungs took a beating, new research has reassuring news: You will likely be spared long-term respiratory damage. Scientists looked at COVID-19 survivors who had asymptomatic, moderate or severe...

A new study may help explain why people with multiple sclerosis (MS) experience worsening disability while those with two related diseases do not. MS causes permanent brain and spinal cord scarring, and researchers investigated whether the same...

Dental care should be a required part of Medicaid coverage for adults in every state, the American Dental Association and nearly 130 other organizations urge in a letter to Congress. The groups called on lawmakers to support...

Early treatment with COVID-19 survivors’ blood plasma doesn’t prevent disease progression in people who have mild COVID-19 symptoms but are at risk for more severe illness, a new clinical trial finds. “As physicians, we wanted this to...

There’s an old saying, “Age and guile beat youth and exuberance,” and new research suggests there might be something to that. Some key brain functions can improve in people as they age, researchers report, challenging the notion...

The United States’ early rollout of COVID-19 vaccinations may have saved nearly 140,000 lives, a new study suggests. Using data on state vaccination campaigns and COVID-19 deaths, researchers estimate that immunizations prevented 139,393 deaths nationwide between December...