The study, which involves about 600 participants 21 years or older, is expected to conclude in April 2023. - ST
SINGAPORE (The Straits Times/Asia News Network): Researchers in Singapore are studying the impact mixing different Covid-19 vaccines, including some not currently under the national vaccination programme, can have on the body's immune system.
The Pribivac study will compare the effect on individuals given three doses of the same vaccine, including the booster, against those given two doses of the same vaccine and a different one for their booster shot.
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