The mumps virus is a single-stranded RNA contained in a two-layer shell that provides features signature virus immune. Only one type of mumps virus has been shown to exist (unlike many viruses that cause colds).
Mumps is highly contagious and spread quickly among members living indoors. The virus most frequently transmitted directly from person to person through respiratory droplets. Less often, respiratory droplets can land on contaminated materials (sheets, pillows, clothing) and then transmitted through hand to mouth after handling these issues. The incubation period from exposure to the virus and the onset of symptoms is 14-18 days. The excretion of the virus is short and the patient should be isolated from other sensitive issues for the first five days after the onset of swelling of the salivary (parotid) glands
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