Bacillus anthracis Bacillus anthracis causes anthrax, which is primarily a disease of lower animals that can be transmitted to man by contact and by inhalation of spores.
Anthrax rapidly spreads from the lungs to other organs, and is deadly if untreated.
The US and Japan both researched the use of anthrax as a biological weapon during WWII, and the Japanese actually built an anthrax bomb. The Soviet Union suffered an accidental release of anthrax from a biological weapons facility in 1979 that killed and sickened several hundred people downwind. Iraq had constructed 50 anthrax bombs and 10 anthrax -tipped missiles prior to the Gulf War. The use of anthrax as a biological weapon for genocide remains to this day a potentially serious terrorist threat. Yes Spore Size 1-3 micron dia.