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Rare Reports Of Heart Inflammation Following Vaccine

The Northwestern Health Unit is closely monitoring rare reports of potential heart inflammation (myocarditis/pericarditis) following a COVID vaccine.

Medical Officer of Health Dr. Kit Young Hoon says, “This side effect is rare, and most cases worldwide have occurred within several days after vaccination. Most cases have occurred in teens and young adult males after receiving the second dose of the vaccine,” says Dr. Young Hoon.

She stresses most cases have had a mild illness, responded well to treatment, and symptoms improved quickly.

Dr. Young Hoon says all immunizers at their clinics will share this information and all possible side effects to ensure that consent of vaccination is fully informed.

She adds national and provincial guidelines haven’t changed. The vaccines are still recommended for all eligible individuals, including youth and young adults.

Dr. Young Hoon says the benefits of the mRNA vaccine continue to outweigh the risks.

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Fort Frances, CA
11:49 am, Apr 11, 2026
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