State health officials are seeking to confirm the vaccine status of the four self-reported cases, but no mutations of the ...

The Vatican says Pope Francis has developed pneumonia in both his lungs, after new tests showed a further complication in the ...

Kennedy's statements have raised concerns about his childhood vaccine commitment to Republican Senator Bill Cassidy.

The measles outbreak in rural West Texas has grown to 58 cases as of Tuesday, and eight people in neighboring eastern New Mexico also have been diagnosed with measles. Public health officials in New ...