Analysis on viral diarrhea pathogen surveillance in Dezhou city from 2021 to 2023
Objective To understand the epidemiological characteristics of viral diarrhea in Dezhou from 2021 to 2023,so as to provide a data basis for the prevention and control of viral diarrhea.Methods A total of 1 875 stool specimens were collected at the Dezhou diarrhoea surveillance sentinels from 2021 to 2023,group A rotavirus,norovirus GⅠ and GⅡ,astrovirus,sapovirus,and enteric adenovirus nucleic acids were detected by Real-Time RT-PCR,and the results of the 6 viruses were statistically analyzed.Results A total of 303 positive cases were detected,with an overall positive rate of 16.16％(303/1 875),including group A rotavirus 8.32％(156/1 875),norovirus GⅠ0.96％(18/1 875),norovirus GⅡ5.28％(99/1 875),astrovirus 1.25％(14/1 120),sapovirus 1.25％(14/1 120),and enteric adenovirus 2.32％(26/1 120).The positive rate of group A rotavirus was highest in the age range of 6 months to 1 year,and the difference in positive rate among different age groups was statistically significant(x2=71.750,P＜0.001);the peak period of onset was from January to April,and the difference in positive rate among different months was statistically significant(x2=63.814,P＜0.001).The positive rate of norovirus GⅠ was highest in the age range of May to July,and the difference in positive rate among different months was statistically significant(x2=16.082,P=0.031).Astrovirus patients had the highest positive rate among the age range of 2 to 5 years,and the difference in positive rate among different age groups was statistically significant(x2=17.133,P=0.027).Sapovirus incidence had a clear seasonal trend,with the highest positive rate in March and positive rate in each month.There was a statistically significant difference in the incidence of enteric ad-enovirus(x2=58.621,P=0.035).The incidence of enteric adenovirus showed a clear seasonal trend,with the peak peri-od from September to November,and there was a statistically significant difference in the positive rate between each month(x2=36.86,P＜0.001).Conclusion From 2021 to 2023,the incidence of viral diarrhoea in Dezhou city is dominated by rotavirus,norovirus and enteric adenovirus,with children under 5 years of age being the susceptible group,and there are geographic differences.
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万方数据
