Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2007.1138.1140SalimkhaniE. RanjbarR. SadeghifardN. MorovvatiS. JonaidiN. IzadiM. 72007107Abstract: Aim of this study was to determine the causative agent and source of a large gastroenteritis outbreak occurred in a national financial center (CBIRI) in July 2003. A patient definition was defined staff were interviewed in the clinic of the Bank and their information were collected by means of a standardized questionnaire. A total of 110 fecal specimens were collected within 48 h of symptom onset from 100 patients with symptoms of gastroenteritis and 10 restaurant staff. The specimens were processed within 12 h to detect ova and parasites by direct microscopy and common bacteria by standard methods. The outbreak started on 22 July 2003 lasted 4 days. From a total of 1300 staff. 535 persons experienced a severe gastrointestinal illness. None but one of tested fecal samples were positive for bacterial enteric pathogens. S. paratyphi B was isolated from the positive case. Definitive association between illness and isolated S. paratyphi B remained to be determined since it was isolated only from one case. There is a need, however, for increased awareness among both professionals and the public to implement appropriate prevention measures and monitoring of food and water.]]>Camps, N., A. Dominguez, M. Company, M. Perez and J. Pardos et al.,2005Salmonella infection due to overproduction of egg-containing foods for a festival.]]>133817822Centers for Disease Control and Prevention,200655180182Clinical and Laboratory Standards Institute,2005Edwards, P.R. and W.H. Ewing,1986Enterobacteriaceae.]]>pp: 169-181pp: 169-181Mead, P.S., L. Slutsker, V. Dietz, L.F. McCaig and J.S. Bresee et al.,19995607625Ooi, P.L., K.T. Goh, K.S. Neo and C.C. Ngan,199726539543Ranjbar, R., M.M. Soltan-Dallal, M.R. Poursha, M.M. Aslani, R. Majdzadeh and M.R. Khorramizadeh,2004333235Swaminathan, B., T.J. Barrett and P. Fields,200689553559Taylor, R., D. Sloan, T. Cooper, B. Morton and I. Hunter,2000Salmonella Saintpaul.]]>24336339Torok, T.J., R.V. Tauxe, R.P. Wise, J.R. Livengood and R. Sokolow et al.,1997278389395