Here is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that have yet to be certified by peer review.
. It found that 24 weeks after full vaccination with an mRNA vaccine, efficacy was 84%, and it was 90% among adults without immunocompromising conditions.Children's noses may be better than adults' at defending against infection because of "pre-activated" immunity against the coronavirus, a new study suggests. Researchers analyzed nasal swabs from 45 infected patients, including 24 children, and from 42 healthy individuals, including 18 children.
Higher amounts of these sensors result in stronger early immune responses in children than in adults, according to a report published on Wednesday in. The nasal samples from the children were also more likely than adult samples to contain immune cells known as T cells that play roles in fighting infection and in developing long-lasting immunity, the researchers found.
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