Not OP, but this is fairly common knowledge. Here's a reliable source - search t... | Hacker News

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ksenzee 46 days ago | parent | context | favorite | on: Martha Lillard, last US polio patient using iron l...

Not OP, but this is fairly common knowledge. Here's a reliable source - search the page for VAPP: https://www.chop.edu/vaccine-education-center/vaccine-detail...

cubefox 46 days ago [–]

Thanks.

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