Pfizer vaccine, 95% epektibo vs. COVID-19 pero posibleng may bahagyang adverse effects; Vaccine Expert Panel, iginiit ang kahalagahan ng herd immunity

PTVPhilippines 2021-05-13

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Pfizer vaccine, 95% epektibo vs. COVID-19 pero posibleng may bahagyang adverse effects; Vaccine Expert Panel, iginiit ang kahalagahan ng herd immunity

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