A nationwide study found that recent colds caused by rhinoviruses can give short-term protection against COVID-19. Children benefit most, as their immune systems react strongly with antiviral defenses, helping explain their lower rates of severe illness.
from All Top News -- ScienceDaily https://ift.tt/8TZsg1Y
from All Top News -- ScienceDaily https://ift.tt/8TZsg1Y
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