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The team discovered that people who previously received AstraZeneca or Sinopharm COVID-19 vaccines had a "non-inferior" immune response when given a half dose of a Pfizer COVID-19 booster vaccine,
Reducing the dose of a widely used COVID-19 booster vaccine produces a similar immune response in adults to a full-dose with fewer side effects, according to a new study. The research, led by Murdoch.