How good is the flu 💉 so far?
👇🏼Pretty darn good: overall, vaccine effectiveness is ~53-54% (higher in older adults). This means that the risk for acute respiratory illness is ⬇️ by HALF:

https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2025.30.4.2500059
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