Earlier quoted context omitted.
Anthrax is found in the soil around the world and generally effects grazing animals like livestock, deer, etc. It is not contagious and isn't something you should lose sleep worrying about. It captures the public's attention because it has been weaponized. https://www.cdc.gov/anthrax/basics/index.html
> Although it is rare in the United States, people can get sick with anthrax if they come in contact with infected animals or contaminated animal products. > Anthrax is not contagious, which means you can’t catch it like the cold or flu. I'm not sure what the technical definition of "contagious" is here but I'm also not sure its helpful when you can catch the disease from an infected animal.
Weaponized anthrax spores are more virulent and spread by aircraft or other munition. You might recall just after 9/11 someone mailed anthrax to public officials in envelopes.