Mumps is an acute, contagious disease of short duration, usually self-limiting, and characterized by swelling of the parotid gland. It has become rare in the U.S. due to vaccination programs. Diagnosis is usually clinical and not based on laboratory testing. Serology samples can be collected as soon as diagnosis is suspected. IgM antibody response normally appears 1-2 weeks after disease onset.
Last Update: June 2019