What is measles- viral or bacterial?

Virus. Measles (also called rubeola) is a highly contagious virus that is transmitted via the respiratory route. A person infected with measles can infect others up to 7 days prior to symptoms and up to 3-4 days after the onset of symptoms. You can prevent getting the infection by getting the MMR (mumps, measles, rubella) vaccination.
Measles. Measles is a very contagious (easily spread) illness caused by a virus. Causes, incidence, and risk factors the infection is spread by contact with droplets from the nose, mouth, or throat of an infected person. Sneezing and coughing can put contaminated droplets into the air.

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