A case of mumps-associated myocarditis

Mumps is a viral infection endemic in North America despite widespread vaccination. Typical symptoms include parotitis, fever, and myalgias; however, absence of parotitis and asymptomatic infection is common. Complications are rare, occurring in 10% or fewer of patients, and have only rarely been described since widespread adoption of the mumps vaccine. Most complications occur in non-vaccinated individuals. Myocarditis is a very rare, but clinically significant, complication of acute mumps infection. We report a case of acute myocarditis with a serological diagnosis of acute mumps infection in a previously healthy, vaccinated 24-year-old female.