detection the pathogenicity of Salmonella spp isolated from drinking water in some region of Baghdad city in animal module.

Abstract

    One thousand five hundred  sixty seven  water samples from different parts of  Baghdad city  were collected from the beginning of  April 2010 till the end of  December 2011, all samples were bacteriologically examined by traditional  methods for detection of  Total coliform and other pathogenic bacteria. Five isolate of  Salmonella  spp. were isolated and  tested for its  pathogenicity  and ability to toxin production in the mouse module , all environmental isolates induced fluid accumulation (FA ratio≥100) after 5 hours and cause histopathological effects after 24h of inoculation. Histopathological changes  showed inflammation of the mucosa and submucosa in the small intestine with mild chronic  inflammatory cells and shortanage of villi ,mild degenerative of renal tissue and slightly necrosis, massive necrosis of hepatic cells with infiltrate of mild inflammatory cells in