Vaccines

U.S. health officials expect flu activity to remain elevated for at least a few more weeks, according to a new report.

Catching a cold or the flu can make you feel miserable. But how can you tell which one you have?

Most Americans think vaccines are beneficial for health, and that children should be required to get them, according to a new poll.

Americans like science. So why do they reject scientific conclusions?

Numerous studies show that vaccines are safe and effective, and that serious side effects are rare.

With a new approach, scientists say it's not inconceivable that we could move from annual flu shots to a once-every-10-years approach.

Vaccines don't cause autism — but why do some people still think that they do?

The mummy of a child discovered in a crypt beneath a Lithuanian church harbors the oldest sample found to date of the virus that causes smallpox, a new report said.

Here's what pregnant women need to know about flu season.

A new HIV vaccine is now being tested in South Africa in a study that aims to enroll several thousand people, officials announced today.

A deadly complication of the measles, which can occur years after a person is infected with the virus, is more common than researchers previously thought, according to a new study.

Today (Oct. 25) taxi service Uber is lending its wheels to help people prepare for flu season — for free.

Researchers are developing new vaccines that could potentially protect against plague infection, early research suggests.

Kids who get alternative medicine treatments may not get their flu shots as recommended, new research shows.

A vaccine against the common cold may be possible, new research in mice and monkeys suggests.

A small outbreak of the chicken pox was traced back to a single school bus in Michigan, and highlights the importance the chicken pox vaccine, according to a new report.