细菌学与寄生虫学杂志

抽象的

Environmental Factors Influencing Antibiotic Resistant Bacterial Pathogens in Polluted Lake Manzala, Egypt

Mahmoud MM Zaky and Mohamed AM Salem

Lake Manzala is considered one of the most important Costal lakes, in the northern part of Egypt. It suffers from high load of pollutants from different sources such as sewage, industrial and agricultural wastes. In this study, physicochemical characterization of lake water revealed high levels of pollution in different sampling sites such as, pH, TSS, TDS, ammonia, nitrates, sulfates, alkalinity, chlorides, calcium and magnesium. Bacterial count such as TVB and fecal coliform of water and fishes of the lake revealed high contamination in Lake Manzala, a total of 90 isolates were identified and resulted in different bacterial pathogens such as, E. coli, Proteus mirabilis, Sphomonas paucimobilis, Citrobacter freunii, Erwinia sp., Pasturella sp. and Pseudomonas sp. Antibiogram was done for all isolates using eight antibiotics such as penicillin, ampicillin, cefotaxime, chloramphenicol, rifampin, tetracycline, streptomycin and gentamicin. The result showed a high resistant pattern among different species which are harboring plasmid DNA. This is an indication that these bacterial pathogens have risk factors in the communities around Lake Manzala.