Estimation on disease burden of foodborne non-typhoid salmonellosis in China using literature review method

Objective To estimate the disease burden of foodborne non-typhoid salmonellosis in China.Methods The occurrence rate of acute diarrhea and the proportion of non-typhoid salmonella were evaluated by literature reviews.The occurence rate of foodborne non-typhoid salmonellosis was calculated by the acute diarrhea morbidity multiplied the factors,including the proportion of non-typhoid salmonella among the diarrhea cases,the diarrhea proportion among the non-typhoid salmonellosis cases from National Foodborne Disease Monitoring Network,foodborne proportion of non-typhoid salmonella infection.The death information was obtained from the third report of death investigation in China from MOH.Results During 2000-2009,non-typhoid salmonella annually caused 8 235 000 diarrhea cases,from which 9 874 000 gastroenteritis cases were deduced,9 035 000 cases were infected by food transmission.Annually 792 deaths were estimated.Conclusions Non-typhoid salmonella is still one of the main foodborne pathgens in our country and causes heavy burden on China.The proportion of non-typhoid salmonellosis cases among gastroenteritis is similar to developed countries in China,and the fatality rate is lower than developed countries.There's some gap between the method by literatures review in China and the well-designed laboratory surveillance.Therefore,the foodborne disease active surveillance including laboratories surveillance should be set up.