Bacillus Anthrax is:: (A) Gram positive cocci in cluster, (B) Gram positive rods with square ends, (C) Gram positive bacili with spherical ends, (D) Gram negative cocci in cluster
Answer is B. Gram Positive bacilli Bacillus Anthrax. Gram positive rods with square ends ( non bulging spore) (bulging spore seen in cl. tetani) GPB, Non Motile, capsulated. Mc fadyeans reaction M - Mc'fadyean reaction Medusa Head appearance I - Inveed fir tree appearance S - String of pearl reaction Bamboo - Bamboo stick appearance ( on Gram stain)