资讯

Data investigation: Childhood vaccination rates are backsliding across the U.S.

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 ...

Childhood vaccine rates are backsliding — and exemptions are getting easier

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 ...