Analysis of Seasonal Characteristics of Wild Bacteria Poisoning Events in Baoshan City Based on Concentration Degree and Circular Step Method
Objective:To analyze the seasonal distribution characteristics of wild bacteria poisoning events in Baoshan city from 2014 to 2023,and provide scientific basis for formulating wild bacteria prevention and control strategy in Baoshan city.Method:The incidence data of wild bacteria poisoning events in Baoshan city from 2014 to 2023 were collected through the national foodborne disease surveillance and reporting system,and descriptive epidemiological analysis was carried out by using concentration degree and circular step method.Result:A total of 304 cases of wild bacteria poisoning events were reported in Baoshan city from 2014 to 2023,with 1 080 cases and 14 deaths.The concentration M value was 0.827,indicating that there was obvious seasonality in the report of wild bacteria poisoning events in Baoshan city.The peak of wild bacteria poisoning events in Baoshan city was July 12,and the epidemic period was from June 6 to August 17.The results of concentration were highly consistent with those of circular step method(R2=0.996 6).Conclusion:The outbreak of wild bacteria poisoning events in Baoshan city from 2014 to 2023 has obvious seasonality.It is recommended to implement the prevention and control measures of wild bacteria poisoning before the epidemic period to ensure people's health.
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