Recently, Peterborough Public Health confirmed the first case of locally acquired measles in the region after over ten years, following a similar case in the City of Kawartha Lakes. The infected individual, who was fully vaccinated against measles, represents a rare 'breakthrough case'.

The health unit emphasized that breakthrough cases are uncommon, with the majority of measles cases in the current outbreak affecting unvaccinated individuals. Typically, breakthrough cases result from prolonged exposure to an infected person. However, fully vaccinated individuals usually experience milder symptoms compared to those who are unvaccinated.

The source of exposure for the Peterborough resident remains unknown, prompting ongoing investigations to identify potential exposure locations and affected individuals. Known exposure locations include various downtown spots and dates:

• Peterborough Transit Bus – Line 6 (Sherbrooke West) – June 2 to 4
• Peterborough Transit Bus – Line 6 (Sherbrooke East) – June 2 to 4
• Peterborough Transit Bus – Line 22 (Community Bus Blue) – June 5
• Jackson Creek Retirement Residence – May 31 and June 1
• Greg’s No Frills – June 4
• Shopper’s Drug Mart – June 2, June 4, and June 5
• PRHC Emergency Department – June 5

Measles, a highly contagious virus transmitted through coughing and sneezing, can remain airborne for up to two hours. Symptoms typically appear one to three weeks after infection and may include fever, cough, runny nose, rash, and more. If you suspect exposure or experience symptoms, contact Peterborough Public Health for guidance and care.

While most people recover from measles without complications, it can pose severe risks for vulnerable populations, such as infants, pregnant individuals, and those with underlying health conditions. Potential complications range from ear infections to brain swelling and even death.