Bakuna ng Pfizer at Biontech, inaprubahan ng WHO na mabigyan ng emergency use validation

Bakuna ng Pfizer at Biontech, inaprubahan ng WHO na mabigyan ng emergency use validation

Bakuna ng Pfizer at Biontech, inaprubahan ng WHO na mabigyan ng emergency use validation


User: PTVPhilippines

Views: 6

Uploaded: 2021-01-01

Duration: 02:28

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