Gastrointestinal infection Etiological Agent and Mis Identification Of Some Pathogenic bacteria like Campylobacter

Nawal S Faris, Mohammad A Salahat


Pathogenic bacteria can enter and infect the digestive tract when someone eats food or drinks water that is contaminated. Examples of contaminated sources include raw or undercooked eggs, poultry or beef, unpasteurized milk, and untreated water from lakes, streams, and (occasionally) from community water supplies. The aims  of our study are strengthening of surveys of the cases of the gastrointestinal tract infection , more knowledge of the causes leading to the gastrointestinal tract, also knowing the risk factors which caused in Miss Identification of some pathogenic bacteria (mainly Campylobacter and Yersinia,  enterocolitica , then  evaluate the number of persons who have negative result and the reason for this lack of screening for all pathogenic bacteria and search  for Salmonella and Shigella only, Attach previous studies in the world on the importance of  isolating bacteria and number of Campylobacter positive samples and the importance of taking the subject into account,  finally culture characterization and epidemiology of the isolated pathogenic bacteria.  In order to reach those goals  we carried out a survey of 484stool samples in the Department of microbiology at Central Laboratory of the Ministry of Health in Amman the capital of Jordan between january 2012 to December 2013 using of stool culture and biochemical test and antisera against salmonella and shigella. Atotal of 484 stool samples were tested for 49salmonella and 50 shigella , a total 99 stool samples were gave positive  results for salmonella , and shigella of with an overall prevalence of  20.5 %. The high number of negative results due to misidentification of many pathogenic bacteria like  Campylobacter and awide variety of other bacteria may sometimes cause diarrhea. These may include: Aeromonas species, Staphylococcus aureusYersinia enterocolitica, Vibrio cholerae and other Vibrio species.

Keywords: Campylobacter, Yersinia,  enterocolitica,  Salmonella and Shigella .stool culture

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