October 3, 2024 by Rockefeller University Recall germinal centers formed in response to a secondary infection generate a second line of defense, rebuffing memory B cells in favor of training naive ones. Credit: Rockefeller UniversityCertain infectious diseases, such as COVID or the flu, evolve constantly, shapeshifting just enough to outmaneuver our immune systems and reinfect...
Tag: <span>booster shots</span>
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What you should know about COVID-19 booster shots and third vaccine doses
by University of Chicago Credit: Unsplash/CC0 Public Domain Increasingly, research shows many people who have weakened immune systems haven’t been able to receive full protection from their COVID-19 vaccines. Unlike healthy people who’ve been vaccinated against SARS-CoV-2, the virus that causes COVID-19, immunocompromised people’s bodies may not produce enough protective antibodies after two doses of the...
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Why do we need booster shots, and could we mix and match different COVID vaccines?
by Kylie Quinn, The Conversation There are three situations where we may need a boost: to build immunity quickly, to re-build immunity that has waned, or to re-focus immunity on new viral variants. Author provided The COVID vaccine rollout is now underway in Australia and around the world. It’s incredible we’ve been able to develop and...