COVID-19 VACCINE
Clinical trials for COVID-19 VACCINE explained in plain language.
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Booster breakthrough: mRNA shot supercharges immunity in inactivated vaccine recipients
Prevention CompletedThis study looked at whether a third dose of an mRNA COVID-19 vaccine (like the Pfizer/BioNTech shot) could boost antibody levels in 300 adults aged 30 and older who had already received two doses of an inactivated COVID-19 vaccine (like Sinovac or Sinopharm) at least three month…
Matched conditions: COVID-19 VACCINE
Phase: PHASE4 • Sponsor: The University of Hong Kong • Aim: Prevention
Last updated Jun 15, 2026 19:05 UTC
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Iron deficiency may weaken vaccine protection, study finds
Knowledge-focused CompletedThis study looked at whether young women with iron deficiency anemia have a weaker immune response to the COVID-19 vaccine. Researchers measured antibody levels before and after iron treatment. The goal is to understand why vaccines sometimes work less well in Africa and whether …
Matched conditions: COVID-19 VACCINE
Phase: NA • Sponsor: Jomo Kenyatta University of Agriculture and Technology • Aim: Knowledge-focused
Last updated Jun 15, 2026 19:06 UTC