
Rising immunity and modest changes in behavior may explain why cases are declining, but much remains unknown, scientists say.
Published: October 14, 2021 at 04:15PM
from NYT Health https://ift.tt/3DD0TWs

Rising immunity and modest changes in behavior may explain why cases are declining, but much remains unknown, scientists say.
Published: October 14, 2021 at 04:15PM
from NYT Health https://ift.tt/3DD0TWs
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