First measles infection in Public Health Sudbury & Districts’ service area since 2014

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Advisory Alert

To: Local Health System Partners

July 22, 2025

Background

Public Health Sudbury & Districts is reporting a confirmed measles infection in an infant who was too young to be immunized.

There are no known community exposures linked to this case at this time. However, measles is spreading throughout North America at the highest levels in three decades. Consider measles in the differential diagnosis of respiratory symptoms or rash. Public Health Ontario lists where in Ontario the public may have been exposed to measles.

If a client reports an exposure, review Post-Exposure Prophylaxis for Contacts (PDF).

Resources

• Laboratory Test Information Index (Public Health Ontario)
• Measles: Information for Health Care Providers (PDF) (Public Health Ontario)
• For infection prevention and control, refer to Measles IPAC Checklist for Clinics and Specimen Collection Centres (PDF) (Public Health Ontario).
• Public Health’s online measles self-assessment tool is available at https://www.surveymonkey.ca/r/measles.

Reporting to Public Health

Measles and other diseases of public health significance are reportable. If you suspect or are testing clients for measles, notify Public Health by faxing or emailing the reporting form (PDF) to 705.677.9618 or HPT_FAX_confidential@phsd.ca.

For questions about measles or other communicable diseases, please contact 705.522.9200, ext. 772 (toll-free 1.866.522.9200). For immunization inquiries, call 705.522.9200, ext. 458 (toll-free 1.866.522.9200). Public Health is available Monday to Friday, 8:30 a.m. to 4:30 p.m., or after hours and on weekends at 705.688.4366.

Sincerely,

Original Signed By

Mustafa Hirji, MD, MPH, FRCPC
Acting Medical Officer of Health

This item was last modified on July 22, 2025