In South Carolina, some parents embrace vaccines, others opt out. Why do people make such different choices? A mix of politics, distrust and misinformation is pushing neighbors apart.

A California child died last year of SSPE, a measles complication that likely will become more common as U.S. measles cases increase.

Measles is "one of the most infectious diseases in the world," the UKHSA said. It is caused by a virus and spreads easily through coughing and sneezing, with early symptoms resembling those of a ...