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Reply to "Republican death cult now killing babies in Mississippi (pertussis)"
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[quote=Anonymous] By the way, the modern diphtheria vaccine was invented in the 1920s. Prior to that, physicians were injecting children with antibodies filtered from animals infected with diphtheria. And after that, in the early 1910s, there was an antibody-antigen complex that served as a vaccine. Just so you know your history. https://www.chop.edu/vaccine-education-center/science-history/vaccine-history/developments-by-year Children's Hospital of Philadelphia Vaccine History: Developments by Year [/quote]
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