COVID-19 VACCINATION

Clinical trials for COVID-19 VACCINATION explained in plain language.

Never miss a new study

Get alerted when new COVID-19 VACCINATION trials appear

Sign up with your email to follow new studies for COVID-19 VACCINATION, keep track of the ones that matter, and come back to a personal dashboard instead of checking manually.

Our safety recommendation!

By submitting, you agree to our Terms of use

Trials to join now! 1 Not yet recruiting 1 Not yet finished but already full! 3 Completed 1

Booster battle: which COVID vaccine gives best protection?

⭐️ VACCINE ⭐️ Completed

This study tested how well a third dose of either the CoronaVac or Comirnaty COVID-19 vaccine boosted immunity in adults who had already received two doses of one of these vaccines at least six months earlier. A total of 451 participants in Hong Kong provided blood samples to mea…

Matched conditions: COVID-19 VACCINATION

Phase: PHASE4 • Sponsor: The University of Hong Kong • Aim: ⭐️ VACCINE ⭐️

Last updated Jun 15, 2026 18:56 UTC

COVID-19 VACCINATION

Get alerted when new COVID-19 VACCINATION trials appear

Booster battle: which COVID vaccine gives best protection?