With all due deference to goats and soda- nonsense.
This has ALWAYS been happening and most of those are self limiting. We just have a whole lot more Microbiology grad students out there looking. Most of these aren’t knew, and they are generally self-limiting from a epidemic standpoint. Camp Bullis near San Antonio Tx had a rickettsial infection back in WWII, with several hundred young healthy recruits seriously sickened and a handful killed. The etiology agent was identified and named,
R. Bullisiae..it has never been seen since.
https://pubmed.ncbi.nlm.nih.gov/15605930/
Then there’s Legionairres Disease, and Hantavirus, and many others. For that matter, Yosemite Park will occasionally get human cases of plague from the Golden Mantled Ground Squirrels (the State rodent, basically a rat in a fur coat) that inhabits the place.
https://www.nps.gov/yose/planyourvisit/plague.htm
But much of the Southwest has had enzootic plague for a couple hundred years now. These diseases have always been there and there have been frequent non-sustained crossover infections, although humans are generally a dead end host for all of these. (Think swimmer’s itch, which is actually an avian version of schizosomiasis). We just haven’t had this many microbiology grad students before.
That’s why some quit to become pilots...