| characterization of toxigenic vibrios isolated from the freshwater environment of hiroshima, japan. | the occurrence and characterization of toxigenic vibrios in surface water and sediment samples of the fresh water environment of the ohta river were studied. the membrane filter, pad preenrichment technique, followed by the placement of membranes onto thiosulfate citrate-bile salt-sucrose agar, was used for the enumeration of total vibrios. qualitative examination of pathogenic vibrios was also attempted. in addition, a survey was conducted to determine the incidence of clostridium botulinum in ... | 1989 | 2690736 |