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Washtenaw County Epi Alert – Measles Update 10/21/16

An older adult from Washtenaw County with international travel was confirmed with measles on 10/15/2016.  Washtenaw County Public Health (WCPH) has been working closely with staff at University of Michigan Health Service (UMHS) to identify, contact and monitor the persons who had the highest risk exposure to the measles case on October 13 at the UM East Ann Arbor Health Center.  Some individuals also received post-exposure prophylaxis.

Additional possible exposure. WCPH has also identified another setting in which persons may have been exposed to the index case.  On Friday, Oct 7, early in the illness, the measles case was at the UM Ross School of Business and attended a “meet-and-greet” from 4pm – 5:30pm for the Women in Leadership conference at the school.  This was likely a period of low infectivity, but notification has gone out to participants and staff.

Secondary cases.  We are now in the timeframe in which secondary cases may start showing symptoms.

  • For exposure on October 7 at UM Ross School of Business, symptoms can appear through October 28.
  • For exposure on October 13 at UM East Ann Arbor, symptoms can appear through November 3.

Report suspected cases. Clinicians need to report all rash illnesses consistent with measles, in children and adults, to Public Health at (734) 544-6700 (phone) or (734) 544-6706 (fax). Please keep in mind that the clinical presentation may be altered if the individual has had previous measles vaccination or received immunoglobulin for post-exposure prophylaxis.

Washtenaw County Public Health information on measles situation: http://www.ewashtenaw.org/government/departments/public_health

Additional Michigan guidance (Key Facts about Measles) is available at: http://www.michigan.gov/documents/mdch/KeyFacts_Measles_392862_7.pdf

CDC Measles Web Site: https://www.cdc.gov/measles/

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