Posted by EngineeringProfit > 2020-06-14 15:40 | Report Abuse

How come children are relatively spared from Covid-19? Especially in country with low anti-vaxxers. Yes, OPV could be the answer..... .....live attenuated virus to live in your stomach and ward off other viral infection for months or years!

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64 comment(s). Last comment by EngineeringProfit 2020-06-18 17:36

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