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Measles

InfectiousMeasles virus7th century ADAirborne
TypeInfectious
CauseMeasles virus
First Known7th century AD
TransmissionAirborne

About Measles

One of the most contagious diseases, R0 of 12-18. Before vaccination, nearly every child caught it. Killed 2.6 million per year before the 1963 vaccine. Declared eliminated in the US in 2000, but outbreaks return with declining vaccination. Can cause immune amnesia, erasing existing immunity.

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