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The Battle of Vaccine | Oral Polio Vaccine (opv) vs Inactivated Polio Vaccine (ipv) | Doctor Prasoon

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OPV อาหมวยหาย 阿妹走Praewproud STARRY☆NITE shorts ver #PraewproudSTARRYNITE #starrynite #fancam

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Is oral vaccine of Polio linked to recent cases in the US, UK, Israel? | WION Originals

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Verify | The oral polio vaccine given in 1950's is still effective

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Oral Polio Vaccine (OPV) is a live but attenuated virus which colonises the gastrointestinal tract.

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