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yofomojojo t1_jdk0chr wrote

Reply to comment by im_thatoneguy in What happened to the old COVID variants, like Delta? Could they come back? by number1dork

Re: your edit - I'm open to being rebutted here but, I think that clip might be a bit outdated. H1N1 is Swine Flu and Spanish Flu. If we're doing podcast links, RadioLab covered this topic again during early Covid. Current scientific papers and articles on the topic all seem to understand and accept that H1N1 is the virus in question in both cases.

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im_thatoneguy t1_jdk1ror wrote

https://pubag.nal.usda.gov/download/26795/PDF

That radiolab is discussing the basis of a 2005 paper which included the entire genome. So a 2009 CDC analysis (which NPR cites) should be based on the fully sequenced H1N1-1918 genome from 2005.

Edit:

https://www.pnas.org/doi/10.1073/pnas.1324197111#supplementary-materials

This states that H1N1 didn't go away, it continued to evolve into a seasonal H1N1. And that likely the 1918 H1N1 branched off into the H1N1 in pigs prior to the human outbreak.

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