What was the underlying cause of the 2014 outbreak of measles in California?

Updated: Jun 06, 2019
  • Author: Selina SP Chen, MD, MPH; Chief Editor: Russell W Steele, MD  more...
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Answer

Public health officials confirmed a total of 59 cases of measles in California residents since the end of December 2014. Of the confirmed cases, 42 have been linked to an initial exposure in December at Disneyland or Disney California Adventure Park in Anaheim, California. [4]

A study by Gastañaduy et al found that during the 2014 measles outbreak, the spread of measles was contained in an undervaccinated Amish community by the isolation of case patients, quarantine of susceptible individuals, and giving the MMR vaccine to more than 10,000 people. As a result, the spread of measles was limited to about 1% in an Amish community of 32,630. [5, 6]   

See 11 Travel Diseases to Consider Before and After the Trip, a Critical Images slideshow, to help identify and manage several infectious travel diseases.


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