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We often measure antibodies in the bloodstream to determine if someone is immune to an illness
With COVID-19 there has been hope that the same would be true
This is a very small study that requires more data
In this small study, antibodies rapidly dropped, meaning that immunity may not last and that people *may* be re-infected
BUT: it’s possible that local immune factors in the respiratory tract will provide immunity and prevent re-infection; we don’t have tests for this yet
Even those who have recovered should practice social distancing and mask-wearing until we know if they can be re-infected
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