Two doses of MMR vaccine do not provide 100% protection against mumps; one dose is about 78% effective and two doses are about 88% effective.
Mumps RT-PCR by buccal swab (offered by commercial labs) is optimal for diagnosis. Since April 2018, CDPH is recommending that if providers suspect mumps, they collect 2 parotid gland duct swabs and a urine sample. One buccal swab should be sent to a commercial laboratory for mumps RT-PCR diagnostic testing and the other buccal swab and urine should be stored at 4°C (or -70°C if possible) to ship to IDPH for additional testing after CDPH consultation. See 3/16/18 HAN alert for additional specimen collection instructions.
Increase in Chicago Mumps Activity: Updated Guidance Chicago Health Alert issued April 16, 2018
Increased Reports of Parotitis and Instructions for Collecting Mumps RT-PCR Specimens Chicago Health Alert issued March 16, 2018
Mumps Surveillance in Illinois as Colleges and Universities Dismiss for Summer IDPH Memo issued May 7, 2018
Upcoming Pride events, students returning home from college, and nearby outbreaks may increase risk of vaccine-preventable disease transmission.
This is the time of year to get all high-risk adults--including men who have sex with men (MSM) and HIV-positive individuals--up to date on recommended vaccines including:
o Meningococcal conjugate vaccine: Revaccination every 5 years
o Hepatitis A vaccine: One-time vaccination series (2 doses of Vaqta® or Havrix® or 3 doses of Twinrix®)
o Measles, Mumps, Rubella (MMR) vaccine: 2 documented doses, serologic proof of immunity, or at least 1 dose now if vaccination status is unknown. Consider 3rd dose of MMR to HIV-positive patients with CD4>200.
Please click HERE for more information
Suspect Cases should be reported within 24 hours.
Do not wait for laboratory confirmation.
Complete the : Mumps Case Report Form
Fax Form To: (312) - 746-6388
Questions: (312) - 746-9867
Sign up for electronic reporting through the
For Clinical Questions Contact:
Dr. Marielle Fricchione, Medical Director
For Surveillance Questions Contact:
Enrique Ramirez, VPD epidemiologist
For questions during non-business hours call 311. (312-744-5000 if outside the City of Chicago.)
Reporting: Suspect Cases should be reported within 24 Hours. Do not wait for laboratory confirmation.