February 23, 2017

Mumps virus is a member of the Paramyxoviridae family, transmitted primarily by droplet spread during coughing and sneezing as well as by direct contact with the saliva of an infected person. Mumps infection is rare in Toronto, with an average of four cases reported per year in the last 5 years.

In Ontario, one dose of a combined measles, mumps, rubella (MMR) vaccine is currently given on or after the first birthday followed by a second dose at four to six years of MMRV. A cohort of individuals born between 1970 and 1992 may not have received two doses of the MMR vaccine. Those born before 1970 likely had natural infection.

Mumps, is a reportable infection and although uncommon does still occur in Ontario.