What is the incubation period for measles?

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

The patient history is notable for exposure to the virus. The incubation period from exposure to onset of measles symptoms ranges from 7 to 14 days (average, 10-12 days). Patients are contagious from 1-2 days before the onset of symptoms. Healthy children are also contagious during the period from 3-5 days before the appearance of the rash to 4 days after the onset of rash. On the other hand, immunocompromised individuals can be contagious during the duration of the illness.


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