@BallouxFrancois @MichaelSFuhrer @greg_travis The 1918/1977 H1N1 went extinct in 2009. At least, it never showed back up in the US after that according to Fluview. I'd show you in the fluview archives, but they're currently down. I'll try again tomorrow. I
RT @BorgerPieter: More likely, the 1917 virus was a distinct influenza virus than that of 1918, H7N9 followed by H1N1. The latter one got e…
More likely, the 1917 virus was a distinct influenza virus than that of 1918, H7N9 followed by H1N1. The latter one got extinct in the 1950s. https://t.co/3ML8d5pweS
RT @BorgerPieter: Ook dit ding komt zeer waarschijnlijk uit een lab, want het oorspronkelijke virus is uitgestorven door genetic entropy: h…