For the second time in five years, some doctors in southwestern Ontario are encountering a virus they've never treated before ...

Dr. Patrick Jackson, a UVA infectious disease expert, warns declining vaccination rates could lead to more outbreaks.

Health officials are closely monitoring several measles cases across the country, including one case in Florida.

Measles is one of the world’s most contagious diseases, with one person being able to infect nine out of 10 of their ...