OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (8): 1082-1086.

• Treatise • Previous Articles     Next Articles

Analysis of Salmonella infection and drug resistance in foodborne diseases in Binhai New Area of Tianjin City from 2015 to 2023

LIU Qin, ZHAO Miaomiao, WANG Xuejiao, YANG Lan, ZHAO Xilu   

  1. Tianjin Binhai New Area Center for Disease Control and Prevention(Tianjin Binhai New Area Institute of Health Inspection)Tianjin 300450, China
  • Received:2025-05-27 Revised:2025-07-03 Online:2026-04-15 Published:2026-05-18

Abstract:

Objective To analyze the incidence of Salmonella infection and antibiotic resistance of foodborne disease patients in Binhai New Area of Tianjin City from 2015 to 2023,and provide a basis for the prevention and control of foodborne diseases and the scientific use of antibiotics. Methods Samples of foodborne disease patients in Binhai New Area of Tianjin City were collected according to the "Foodborne Disease Surveillance Work Manual",and Salmonella was detected,serum typing and drug sensitivity tests were conducted,and the data were analyzed. Results A total of 4 553 samples of foodborne disease patients were collected from 2015 to 2023,and 230 Salmonella strains were detected,the detection rate was 5.05%,and the detection rate showed an increasing trend(χ2trend=4.78,P<0.05). The detection rates of the first,second,third and fourth quarters were 9.76%,7.42%,4.80% and 2.77%,respectively,and the seasonal index of the third quarter was the highest(2.1). The detection rates of the 0-<6,6-<18,18-<60,and ≥60 age groups were 12.94%,5.14%,3.52%,and 4.78%,respectively. Eggs and egg products(18.75%) were the main suspected foods causing Salmonella foodborne illness,and street stalls/food shops were the main places causing Salmonella foodborne illness. Salmonella could be divided into 24 serotypes,the high serotypes were Salmonella enteritidis(2.02%) and Salmonella typhimurium(0.79%). The number of drug-resistant strains was 176,and the overall drug resistance rate was 87.13%,and the overall drug resistance rate showed an increasing trend(χ2trend=9.347,P<0.01). The highest drug resistance rates were nalidixic acid(54.95%),ampicillin(53.96%) and tetracycline(38.61%),and the proportion of multi-drug resistant strains also showed an annual increasing trend(χ2trend=14.311,P<0.01). Conclusion The detection rate of salmonella in patients with foodborne diseases in Binhai New Area of Tianjin City from 2015 to 2023 is increasing year by year,with a high rate of multidrug resistance and serious drug resistance. Active surveillance of foodborne diseases and monitoring of salmonella drug resistance should be strengthened,and drug use should be carefully selected in livestock breeding and clinical treatment.

Key words: Salmonella, Popular characteristics, Foodborne disease, Drug resistance

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