Evaluation of the Microbial Pollution of Water in Ramasandra Lake, Bangalore, Karnataka and Assessment of Multiple Antibiotic Resistance among Escherichia Coli

An experiment was designed to examine microbiology of water samples of Ramasandra Lake and further assess the occurance of the multiple antibiotic resistance of E coli. Analysis of the water samples obtained from the lake indicates high microbial and fecal contamination with microbial load in order of 105 and MPN >1800/100ml. Collected water samples from four stations were screened for the E coli to assess their resistance to 10 different antibiotics. Of the 14 E coli isolates 0% were susceptible to all antibiotics used. The isolates were found resistance to penicillin and tetracycline (100%). Among the 10 antibiotics tested, four pattern of antibiotics resistance were obtained and all of them were multiple antibiotic resistance with the number of antibiotics ranging from 2 to 7. The result indicates the developing antibiotic resistant E coli may be a serious threat on public health, aquatic organisms and environment