Medical Advisory - Mumps in Niagara

Released April 25, 2017

​Issued by: M. Mustafa Hirji, MD, MPH, FRCPC Associate Medical Officer of Health

Heightened Surveillance

  • ​​There have been at least 114 cases of mumps in Greater Toronto Hamilton Area since January
  • The first laboratory confirmed case of mumps has been identified in Niagara
  • We request health professionals be on heightened surveillance for additional cases of mumps

Signs and Symptoms

  • Typically, fever, headache, malaise, myalgia, and/or anorexia, followed by
  • Unilateral or bilateral parotitis (30% to 40% of all patients)
  • Most symptoms resolve within 3-5 days, and parotid swelling within 7-10 days
  • 20% of infected persons are asymptomatic

Managing Suspected Cases

  • ​Please report immediately to Public Health 1-888-505-6074 or 905-688-8248 ext. 7330
  • Advise not to attend childcare, school, work, or public places until 5 days after symptom onset
  • Advise to avoid contact with infants ≤1 year of age, pregnant women and immunocompromised individuals

Diagnostic Testing

Please provide relevant clinical information on the lab requisition form and the purpose of testing (e.g. suspect mumps) to facilitate rapid testing.

Obtain all of the following specimens for all suspect mumps cases:

  • Buccal swab (near upper rear molars) for PCR
  • Urine for PCR
  • Blood for IgM and IgG at time of acute presentation

For more details, see the Public Health Ontario Test Directory.

Immunization Recommendations

  • Two doses
    • First dose as MMR at 12 months of age
    • Second dose as MMRV at 4-6 years of age
  • ​Adults born in or after 1970, including those uncertain of their immunization history, are eligible to receive a total of 2 lifetime doses of mumps-containing vaccine
  • Adults born prior to 1970 are generally presumed to have acquired natural immunity to mumps

For further information, please contact Niagara Region Public Health, Vaccine Preventable Disease program at 1-888-505-6074 or 905-688-8248 ext. 7425 Monday to Friday 8:30 a.m. to 4:30 p.m., after hours 905-984-3690.


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