<prompt> Which amongst the following biological agents carries the least potential for use as a biological weapon for microbial terrorism?Plague Yersinia pestisSmall pox variola majorBotulism Cl. botulinumBrucellosis Brucella sp  <response>: Brucellosis Brucella sp. is classified as Category B agent with second highest prioritypotential for use as a biological weapon for microbial terrorism.Plague, smallpox and Botulism belong to Category A as defined by CDC with the highest potential for use as biological weapons. 