Maryland has some of the highest cases of Lyme disease​ in the nation, yet funding for research is in jeopardy.

A new definition of obesity could nearly double the prevalence of U.S. adults with the condition, a new study published ...

Infections accelerate aging by damaging cells and organs. Preventing them with vaccines, hand hygiene, masks, and clean air ...

Barry Manilow is recovering after catching a "cancerous spot" on his lung. Here's what to know about lung cancer's signs, ...

When the flu strikes, it can feel relentless: rising fever, hacking cough, stuffy nose and sore throat. For many people, ...

CDC recommendations have been altered for another vaccine, to the confusion of vaccination experts. The Observer has answers ...

As COVID completes its sixth year, official statistics obscure the scale of harm, while Long COVID and excess deaths reveal ...

An 11-year-old boy from Alabama has died after suffering rare and severe complications from influenza. Common signs and ...

B, 30, a government worker in Utah who asked to use only her first initial to protect her privacy and job, said that watching ...

Routine mammograms are best known as a front-line tool for detecting breast cancer. But new research suggests the same X-ray ...

The United States is expected to adopt the vaccine schedule used by Denmark, a much smaller country with universal health ...