The child was unvaccinated and recently returned from international travel, according to the Sacramento County public health officer.

Public health officials announced Monday that a child from Sacramento County has a confirmed case of measles. Sacramento ...

An unvaccinated child returned home from international travel and showed measles symptoms. Their case is consistent with a national trend, officials say.

Measles is the most contagious disease that we know. It spreads with unbelievable efficiency, in a nonimmune or a partially immune population,” says Dr. Adam Ratner, pediatric infectious disease ...