ScienceDaily (Aug. 28, 2010) — Although immunity to mumps is high in the United States, mumps vaccine coverage must be maintained and improved to prevent future outbreaks, according to a new study, now available online, in the September 1, 2010 issue of The Journal of Infectious Diseases.
Mumps -- a viral illness found in most parts of the world -- can cause serious complications, including deafness, sterility, meningitis, and encephalitis. Since 1977, mumps vaccination has been recommended in the U.S. and is given as part of the MMR (measles-mumps-rubella) vaccine. Two doses are currently recommended for children. By 2000, the annual number of reported U.S. mumps cases had declined to less than 500. But in 2006, the country's largest mumps outbreak in 20 years began on college campuses in Iowa and resulted in more than 6,000 reported cases. This event raised questions about how to prevent future outbreaks and about the feasibility of eliminating mumps.