DWQA Questions › Tag: lead arsenateFilter:AllOpenResolvedClosedUnansweredSort byViewsAnswersVotesA viewer asks: “The doctor on the internet also expressed skepticism about vaccines. I learned that Polio may have been caused by large scale use of the neurological toxin lead arsenate used at that time to combat an invasion of gypsy moths. Was that the case?”ClosedNicola asked 4 years ago • Coronavirus COVID-19313 views0 answers0 votes
Nicola