What has contributed to a resurgence of measles?

Updated: Jun 06, 2019
  • Author: Selina SP Chen, MD, MPH; Chief Editor: Russell W Steele, MD  more...
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Unsubstantiated claims that suggest an association between the measles vaccine and autism have resulted in reduced vaccine use and contributed to a recent resurgence of measles in countries where immunization rates have fallen to below the level needed to maintain herd immunity. [13, 14]

Considering that for industrialized countries such as the United States, endemic transmission of measles may be reestablished if measles immunity falls to less than 93-95%, efforts to ensure high immunization rates among people in both developed and developing countries must be sustained.

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