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NIH RESEARCH MATTERS
March 8, 2022
In this Edition
COVID-19 Immune response
COVID-19 immune response improves for months after
Improves for months after
vaccination
vaccination
Getting sufficient sleep reduces
calorle Intake
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How skin cells help fight acne
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Researchers showed that B cells evolve after COVID-1
vaccination to help Improve protection against SARS-CoV-2
over tlme:
better understanding of how the Immune system responds to COVID-19 vaccination could lead to more effective and
longer-lasting vaccination strategies
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Vaccines are the best way to protect
yourself against COVID-19. They elicit 
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strong defense against SARS-CoV-2, the virus that causes the disease.
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Vaccines activate your bodys disease defense system; called the immune
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system: The response starts by engaging two kinds of immune cells: B cells,
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which produce antibodles that fight off the virus, and T cells, which destroy
Infected cells
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After this Initial response, levels of antibodles in the bloodstream begin to
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fall. But some B and T cells stay around to keep a "memory" of the virus
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fight off future Infections
In order to optimize future COVID-19 vaccines
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predict when booster shots are needed, researchers have been working to
better understanding of these memorv cells
and
and
gain