Measles Preparedness

March 5, 2024

There have been 17 cases of measles now confirmed in Canada, including 5 in Ontario.

Further information and details can also be found online: https://www.peterboroughpublichealth.ca/your-health/measles/ or in
this advisory at https://www.peterboroughpublichealth.ca/for-professionals/health-professionals/ .

Clinical signs and symptoms are characterized by fever, cough, coryza or conjunctivitis, and generalized maculopapular rash. Most people exposed to measles become symptomatic after 10-14 days. Incubation period ranges from seven to 21days. Cases are infectious from one day before the start of the prodromal period, which is usually about four days before rash onset, to four days after onset of rash. Exclusion for measles exposure begins five days after first exposure due to the possibility of transmission before symptoms begin.

More Information and Resources
• Measles for Healthcare Professionals (Center for Disease Control & Prevention, United States)
• Canadian Immunization Guide – Measles Vaccine (National Advisory Committee on Immunizations (NACI))
• Guidelines for the Prevention and Control of Measles in Canada (Public Health Agency of Canada (PHAC))
• Measles (Public Health Ontario (PHO))