Isolation of some pathogenic organisms such as salmonella, shigella and vibrio para haemolyticus from Mariut lake due to sewage discharge

The isolation of the salmonella, shigella and V. parahaemolyticus directly from water is the most reliable proof that it contains dangerous impurities. A total of 80 water samples were collected by modified moore swab from four sites [Factories, Gheit El-Enab, Kabbary, citadel. It was found that the highest salmonella recovery 90% were obtained form Gheit El-Enab while the least percentage was factories. 212 salmonella strains were isolated, they were belonging to 20 serotypes. In addition 5% shigella strains were isolated [Sh. boydii] BS was the most efficient medium