This article has been updated to include a response from the state Department of Health regarding vaccination status.

Chester County health officials confirmed two measles cases in residents this week as the highly contagious disease continues ...

Chester County health officials confirmed two measles cases in residents this week as the highly contagious disease continues ...

Pennsylvania health officials and doctors on Friday said several people have been hospitalized amid a growing measles outbreak that has spread to six counties in the southeastern and central parts of ...

From smallpox eradication to COVID vaccines, explore the most significant vaccine breakthroughs in the U.S. over 250 years of fighting disease.

With recent changes from the Centers for Disease Control and Prevention regarding which routine vaccines that children and teens should get, it's only natural that there might be some confusion.

There are 12 childhood vaccines in wide use in South Africa. This guide unpacks what you need to know about each of them.South Africa provides routine vaccination against polio, tuberculosis, measles, ...

This summer marks the 50th anniversary of one of the most bizarre disease outbreaks in the history of microbiology – and one ...

WHO and UNICEF have challenged India's official estimate for the hepatitis B birth dose given to newborns within 24 hours. The gap has raised concerns over coverage denominators even as India's ...

A measles outbreak that began in south-central Pennsylvania in late April has grown to more than 70 confirmed cases, with state health officials urging unvaccinated residents to get immunized and ...

Cancer cases worldwide are projected to nearly double by 2050, to 35 million from 19.5 million annually, according to a new ...