The old Blanket myth again. It keeps making the rounds.
https://www.historynet.com/smallpox-in-the-blankets.htm
https://quod.lib.umich.edu/p/plag/5240451.0001.009/—did-the-us-army-distribute-smallpox-blankets-to-indians?rgn=main;view=fulltext
That lie is entrenched and isn’t going away anytime soon.