OCCURRENCE AND SEROLOGICAL GROUPING OF ENTEROPATHOGENIC ESCHER1CHIA COLT FROM SEWAGEN.N. VIDHALE AND L.V. GANGA WANEAbstract Amravati is a developing city in Vidarbha region of Maharashtra with a population'of over five lakhs. Sewage from the city is discharged into "Amba Nala" and it is connected to river "Pedhi". Nearly 1000 hectares of land is irrigated by untreated sewage. Variety of crops such as Wheat, Groundnut, Jowar, Cotton, Pigeon pea, Tomato, Brinjal, Coriander, Methi, Cauliflower, Chilli, etc. are grown on this sewage irrigated fields. Out breaks of diarrhoea frequently occur during the year in Amavati city. Escherichia coil is one of the most important pathogen causing diarrhoea in childrens. The diurnal variation in the occurrence of E. coli was recorded in Amba-nala. Out of 320 strains of E. coli, 232 (72.50%) were typable and 88 (27.50%) were non typable. Different serotypes isolated 026: K60 (B6) - (14.69%); 086: K 61 (B7)- (10.62%); 0128: K67 (12)- (9.06%); 055: K59 (B5)- (8.44%); 0142:K86 (B)- (7.80%); 0124: K72 (B17)-(6.88%); 0111: K58 (B4)- (5.94%); 0127:K63 (B8)- (4.69%), 0112:K66 (BII)(4.38%) may involved in gasro-intestinal disturbances causing diarrhoea in childrens and infections in animals.
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