Submitted by GeoGeoGeoGeo t3_1276sfu in science
The-Crawling-Chaos t1_jedv5my wrote
Reply to comment by HarryHacker42 in Horses came to American West by early 1600s, study finds by GeoGeoGeoGeo
Horsepox is not contagious to humans. Cowpox is, and it shares some acquired immunity with smallpox. Smallpox is believed to have evolved from a rodent poxvirus. Smallpox is not known to infect horses (or any other nonhumans).
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