Category B Agents
Ricin toxin from Ricinus communis (castor beans)
Staphylococcal enterotoxin B
Typhus fever (Rickettsia prowazeki)
Viral encephalitis [alphaviruses (e.g., Venezuelan equine encephalitis, Eastern equine encephalitis, Western equine encephalitis)]
Water safety threats (e.g., Vibrio cholerae, Cryptosporidium parvum)