In a Friday release, Penn State said three cases of varicella, commonly known as chickenpox, have been confirmed by health officials on the University Park campus. The contagious virus brings a ...

Five people have been hospitalized with cardiac and neurological symptoms after getting the chikungunya vaccine.

Health and Human Services Secretary Robert F. Kennedy Jr., a notorious vaccine skeptic, has backed the measles vaccine amid ...

Vaccination provides long-lasting 97% protection against measles infection. Most people who have been vaccinated do not need ...

Health officials in Montgomery County announced over the weekend that an unvaccinated child in the county had been diagnosed with measles. Officials are still working on contact tracing for the child ...

Vaccines not only protect individual children from measles, but also contribute to community immunity, protecting those who ...