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Booster Shots and Additional Doses for COVID-19 Vaccines — What You Need to Know | Johns Hopkins Medicine
CDC - Some people have side effects after getting their COVID-19 vaccine, but these usually go away within a few days. Side effects after your second shot may be more intense than
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Why are women and younger people having more side effects to Pfizer or Moderna vaccine? UCSF doctor explains - ABC7 Chicago
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Only one in four people experience mild systemic side effects from COVID-19 vaccines - King's College London
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COVID-19 vaccine waning and effectiveness and side-effects of boosters: a prospective community study from the ZOE COVID Study - The Lancet Infectious Diseases
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