I did a double-take at the mention of seals in the phrase "...not only were the ancient strains unexpectedly related to those circulating in present-day seals,

I did a double-take at the mention of seals in the phrase "...not only were the ancient strains unexpectedly related to those circulating in present-day seals, but comparison against a large number of human strains..." and wondered whether it was an autocorrect mistake. But apparently not: "Seals brought TB to Americas" https://www.nature.com/news/seals-brought-tb-to-americas-1.15748 https://www.nature.com/news/seals-brought-tb-to-americas-1.1...