This is likely to mean immunity levels decline and raises the risk of reinfection, researchers say.
from Covid: Antibodies 'fall rapidly after infection' https://ift.tt/34ucIQ0
https://ift.tt/eA8V8J
from Covid: Antibodies 'fall rapidly after infection' https://ift.tt/34ucIQ0
https://ift.tt/eA8V8J
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