A monthslong NBC News data investigation finds that much of the U.S. doesn't have the protection needed to stop the spread of ...

The health department said the death is a "painful reminder" of how dangerous measles can be in unvaccinated people.

Health officials have confirmed the second case of measles in suburban Cook County this year—in a 4-year-old, unvaccinated ...

The Los Angeles County Department of Public Health this week reported the death of a school-aged child due to a rare ...

Sen. Bill Cassidy (R-La.), chair of the Senate Committee on Health, Education, Labor and Pensions, called on Health and Human ...

An unidentified, school-age child from Los Angeles County, California, has died from a rare complication of the measles virus ...

Louisiana Sen. Bill Cassidy (R) wrote to HHS Secretary RFK Jr., urging his support of the whooping cough vaccine amid a nationwide outbreak.

Health officials in wealthy New York City neighborhoods are on high alert after detecting two cases of the world's most ...

An NBC News data investigation finds that much of the U.S. currently doesn't have the protection needed to stop the spread of deadly diseases. St. Louis is a window into hurdles communities face ...

There is growing pressure from parents and the Trump administration for exemptions to be expanded. The U.S. Supreme Court ...