1.15-M doses ng AstraZeneca vaccines, dumating na sa bansa; konseptong 'micro-herd immunity', isinusulong ni Sec. Concepcion

PTVPhilippines 2021-07-16

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1.15-M doses ng AstraZeneca vaccines, dumating na sa bansa; konseptong 'micro-herd immunity', isinusulong ni Sec. Concepcion

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