How is a diagnosis of measles confirmed?

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

Although the diagnosis of measles is usually determined from the classic clinical picture, laboratory identification and confirmation of the diagnosis are necessary for public health and outbreak control. Laboratory confirmation is achieved by means of the following:

  • Serologic testing for measles-specific IgM or IgG titers

  • Isolation of the virus

  • Reverse-transcriptase polymerase chain reaction (RT-PCR) evaluation


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