5 year old child with pseudomembrane in throat, fever, sore throat, organism is ?: (A) Comma shaped gram negative bacilli, (B) Club shaped gram positive bacilli, (C) Spore forming gram positive bacilli, (D) Filamentous gram positive bacilli
Answer is B. Ans. is 'b' i.e., Club shaped gram positive bacilli Corney bacterium diphtheria Non motile, non-capsulated, club shaped gram positive bacillus. Infect nasopharynx & release exotoxin which cause local inflamation of epithelial surface, formation of membrane (pseudomembrane) and toxemia.