| bacteriological & epidemiological characteristics of diphtheria cases in & around delhi -a retrospective study. | diphtheria infections caused by the different toxigenic biotypes of corynebacterium diphtheriae are endemic in delhi. information on biochemical identification, toxigenicity and antimicrobial susceptibility to this bacterium is scanty. this retrospective study was carried out to identify isolated corynebacteria biochemically, determine their toxigenicity, drug sensitivity and some epidemiological characteristics of diphtheria cases from delhi and adjoining states for the period 1998-2004. | 2007 | 18219082 |