Analysis on food-borne disease detection results in Liuzhou city in 2022
Objective To understand the basic situation of food-borne disease surveillance cases in Liuzhou city in 2022,and analyse the epidemiological characteristics of food-borne diseases,so as to provide scientific basis for preventing and reducing the occurrence of food-borne diseases.Methods Food-borne disease surveillance cases in Liuzhou city in 2022 were derived from the Foodborne Diseases Surveillance Reporting System.Basic information on the case,main symptoms and signs,dietary exposure history,and biological sample information were collected.Biological specimen testing data were collected from 6 active surveillance hospitals in Liuzhou city,and fresh feces or anal swabs were collected from compliant cases for Salmonella,Shigella,Vibrio parahaemolyticus,diarrhea-causing Escherichia coli,and Norovirus testing,to an-alyze the epidemiological characteristics of foodborne disease surveillance cases.Results The total number of cases of food-borne diseases in Liuzhou in 2022 was 3 552,of which 47.64％(1 692/3 552)were men and 52.36％(1 860/3 552)were women.The highest incidence occurred in the 0-4 age group,at 23.00％(817/3 552).The number of cases varies from time to time and region to region,with the highest proportion of 12.11％(430/3 552),occurring in August;The highest proportion(21.37％,759/3 552)was in the central urban areas;Farmers had the highest incidence rate at 20.21％(718/3 552).Fruits and their products,including preserved fruits and preserves,topped the list of suspected exposures at 22.13％(786/3 552).Bulk(including simple packaging)topped the list of different food processing and packaging meth-ods,accounting for 35.84％(1 273/3 552).The detection rate of pathogenic bacteria was 10.37％(98/945)and of norovirus was 2.89％(16/553),and differences in pathogen detection rate was statistically significant across occupations(x2=29.435,P＜0.01)and seasons(x2=40.996,P＜0.01.Conclusion The incidence of food-borne diseases in Liuzhou city peaked in August in 2022,and the high-risk people is children aged 0 to 4 years old,and suspected exposed food main-ly comes in bulk.The main pathogens detected are Salmonella and Norovirus.
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