Measles Vaccine Virus RNA in Children More Than 100 Days after Vaccination

Viruses 2019, 11(7), 636; https://doi.org/10.3390/v11070636

“We report detection and confirmation of MeVV RNA from the respiratory tract of 11 children between 100 and 800 days after most recent receipt of measles-containing vaccine. These novel findings emphasize the importance of genotyping all MeV detections and highlight the need for further work to assess whether persistent MeVV RNA represents viable virus and if transmission to close contacts can occur.”

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