hlstark - 11/19/2025 05:30

How the flu shot provides protection even with a mismatch with the current strain?


Cross-protection: The flu vaccine introduces the body to certain influenza strains, which can trigger an immune response that offers some protection against similar but different strains circulating in the community.

Reduced severity: Even if you get the flu after being vaccinated, the illness is likely to be less severe than it would have been without the vaccine.

Fewer complications: Getting a flu shot, even an imperfect one, is very effective at preventing serious complications like hospitalization and death.

Protection against multiple strains: Most flu vaccines protect against three different types of the influenza virus, and multiple strains can circulate during any given flu season.