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by mumblemumble
2116 days ago
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Officially, it gives you at least 6 months' worth of immunity, but, beyond that, there are no guarantees, and it generally fades over time. That's why the recommendation is to wait until shortly before the onset of flu season to get vaccinated: If you get vaccinated in July, there's no guarantee that the vaccination will carry you through the worst of a (northern hemisphere) flu season. |
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