Analysis of active surveillance results of adult foodborne diarrhea in Beijing from 2018 to 2022
Objective To analyze the infection status of adult foodborne diarrhea in Beijing from 2018 to 2022,to explore the epidemiological and clinical characteristics of infected cases,and to provide reference for the prevention and control of adult foodborne diseases and clinical diagnosis and treatment.Methods Fecal specimens or anal swabs from adult diarrhea monitoring cases aged ≥18 years in sentinel hospitals in Beijing from 2018 to 2022 were tested for Salmonella,Vibrio parahaemolyticus,Escherichia coli,Shigella(hereinafter referred to as the'four pathogenic bacteria")and Norovirus in accordance with the National Foodborne Disease Monitoring Work Manual.Epidemiological characteristics were analyzed by SPSS 21.0 software,and x2 or Fisher's exact probability test were used to compare the detection status of pathogens with different characteristics.The difference was statistically significant when P＜0.05.Results From 2018 to 2022,a total of 21 413 fresh fecal or anal swab samples of adults with foodborne diarrhea were collected in Beijing.The detection rate of Salmonella was 3.59％.The detection rate of Shigella was 0.02％.The detection rate of Vibrio parahaemolyticus was 2.56％.And the detection rate of Escherichia coli was 7.43％.The detection rate of Norovirus in 10 684 samples was 8.01％.The peak of infection of the four pathogenic bacteria was from July to September each year,and Norovirus infections mainly occurred in winter and spring,with people 30-44 years old being the main infected population.Most cases infected with Vibrio parahaemolyticus reported that they had consumed aquatic animals and their products.And cases infected with Salmonella had a higher proportion of fever symptom and diarrhea ≥10/24 hours compared to cases with other pathogens.Conclusions Adult cases of foodborne diarrhea in Beijing had seasonal and population-epidemiological characteristics,which can be combined with suspected food exposure information and clinical characteristics of different pathogenic infection cases to provide basis for food safety and health education and clinical diagnosis.
adultsfoodborne diseasesactive surveillanceBeijing City
NETL
NSTL
万方数据
