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A comment on Moderna's mRNA cancer vaccine works better than thought. Parent comment
Probably you heard about diphtheria and tetanus vaccines before 2020. They are prepared from toxins.
Other definitions did not restrict what a vaccine must contain.[2]
[1] http://web.archive.org/web/20190118214500/https://www.merria...
[2] https://web.archive.org/web/20160402152957/https://www.dicti...
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Probably you heard about diphtheria and tetanus vaccines before 2020. They are prepared from toxins.
Other definitions did not restrict what a vaccine must contain.[2]
[1] http://web.archive.org/web/20190118214500/https://www.merria...
[2] https://web.archive.org/web/20160402152957/https://www.dicti...