Tests can confuse recent MMR vaccination as measles infection, report advises

Syndromic PCR panels may incorrectly identify a measles infection in children who recently received the MMR vaccine. Physicians should assess clinical features and vaccine history after a positive test to avoid misdiagnoses. The CDC has recently warned healthcare providers about a rise in measles cases globally. Around 5% of people may experience a rash after receiving the MMR vaccine. Investigation revealed that syndromic PCR panels may lead to incidental detection of measles vaccine virus if a child has recently been vaccinated. Careful assessment and collaboration with the local health department is recommended when measles is suspected or detected after recent MMR vaccination.

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