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How long does flu shot last? What experts say this fall
Detroit Free Press • • health
Key Points:
- Flu season in Michigan typically begins in October and peaks between December and February, with protection from vaccination taking about two weeks to develop and lasting throughout the season.
- Health experts recommend getting the flu shot by late October or even September to ensure optimal immunity, as annual vaccination is necessary due to declining immunity over time.
- The 2023-2024 flu vaccine is updated to target three virus strains, including the influenza A (H3N2) subclade K virus that circulated last season, and a new mRNA flu vaccine (mFLUSIVA) is authorized for people aged 50 and older.
- The CDC advises everyone aged 6 months and older to get vaccinated, especially high-risk groups such as seniors, young children, pregnant women, and individuals with chronic health conditions.
- Flu shots are widely available at local pharmacies, doctor's offices, and health departments across Michigan, often at low or no cost with insurance coverage.
