摘要
目的了解2016-2021年上海市儿童感染性腹泻的流行特征及病原谱特征,为上海市儿童感染性腹泻防控策略的制定提供科学依据。方法采用多阶段系统抽样方法,在上海市5家儿童感染性腹泻监测点医疗机构的儿科肠道门诊或儿科门/急诊中开展腹泻症状监测,收集患者人口学信息和流行病学资料等,同时采集患者粪便标本,送至医疗机构所在区CDC开展12种细菌和5种病毒的病原学检测,分析比较2016-2021年不同人群、季节和时期的病原谱等特征。统计学分析采用χ^(2)检验。结果2456例感染性腹泻患者中,常见肠道病原总阳性率为45.11%(1108/2456),单一细菌感染阳性率为16.00%(393/2456),单一病毒感染阳性率为20.81%(511/2456),混合感染为8.31%(204/2456)。以致病性大肠埃希菌(12.95%,318/2456)、诺如病毒(10.91%,268/2456)、轮状病毒(7.49%,184/2456)、沙门菌(5.82%,143/2456)和空肠弯曲菌(4.68%,115/2456)为主。儿童感染性腹泻病患者病原谱呈现明显的季节变化,夏季以细菌感染为主,6月达到高峰(34.50%,69/200),冬季以病毒感染为主,1月达到高峰(48.10%,101/210)。不同年龄组、人群和季节检出阳性率差异有统计学意义(χ^(2)=160.53,P<0.001;χ^(2)=14.80,P=0.003;χ^(2)=27.21,P<0.001)。2020-2021年儿童感染性腹泻年均病例数(284例)较2016-2019年大幅下降(472例);病原谱发生了显著的变化(χ^(2)=39.02,P=0.001),细菌(χ^(2)=11.73,P<0.001)与病毒(χ^(2)=14.22,P<0.001)的阳性率均明显下降;但腺病毒阳性率上升。结论上海市儿童感染性腹泻患者的病原谱呈现明显的季节变化,以致病性大肠埃希菌、诺如病毒和轮状病毒为主要的腹泻病原。近年来肠道腺病毒腹泻增多,2020-2021年儿童感染性腹泻就诊数及阳性率均显著下降。应针对不同年龄、季节、病原和时期的感染性腹泻采取特异性的防控措施。
Objective To investigate the epidemiological and pathogenic characteristics of children's infectious diarrhea in Shanghai to provide evidence for developing strategies related to the control of the disease.Methods Diarrhea outpatients were under surveillance at the pediatric intestinal clinic at five sentinel hospitals in Shanghai,with demographic,clinical,and epidemiological information collected.Fecal specimens were collected and detected for 12 bacteria and 5 viruses by district center for disease control and prevention.Characteristics of diarrhea patients were compared and analyzed from 2016 to 2021.Multi-stage systematic sampling method was adopted.The Chi-square test was used for statistical analysis.Results Of 2456 infectious diarrhea patients,the positive rate was 45.11%(1108/2456),16.00%(393/2456),20.81%(511/2456),8.31%(204/2456),for all pathogens,single bacteria,single virus,and diverse infections respectively.The prevalent detected pathogens were pathogenic Escherichia coli(12.95%,318/2456),norovirus(10.91%,268/2456),rotavirus(7.49%,184/2456),Salmonella(5.82%,143/2456)and Campylobacter jejuni(4.68%,115/2456).The pathogen spectrum of childhood infectious diarrhea patients showed noticeable seasonal changes,with a prevalent bacterial infection in summer[peaked in June,the positive rate was 34.50%(69/200)]and a prevalent viral infection in winter[peaked in January,the positive rate was 48.10%(101/210)].The positive rates in different age groups,populations,and seasons were statistically different(χ^(2)=160.53,P<0.001;χ^(2)=14.80,P=0.003;χ^(2)=27.21,P<0.001).During 2020-2021,the number of cases of infectious diarrhea in children(284 cases/year)dropped significantly compared with the number in 2016-2019(472 cases/year),the pathogen spectrum changed significantly(χ^(2)=39.02,P=0.001),and the positive findings of bacteria(χ^(2)=11.73,P<0.001)and viruses(χ^(2)=14.22,P<0.001)decreased significantly.However,the positive rate of enteric adenovirus increased.Conclusions The pathogen spectrum of children's in
作者
林声
宫霄欢
肖文佳
俞晓
潘浩
吴寰宇
Lin Sheng;Gong Xiaohuan;Xiao Wenjia;Yu Xiao;Pan Hao;Wu Huanyu(Institute for Communicable Disease Control and Prevention,Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China;Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China)
出处
《中华流行病学杂志》
CAS
CSCD
北大核心
2023年第2期243-249,共7页
Chinese Journal of Epidemiology
基金
新型冠状病毒肺炎血清流行病学及感染传播风险研究(20JC1410200)。
关键词
儿童
感染性腹泻
流行特征
腺病毒
Children
Infectious diarrhea
Epidemiological characteristics
Adenovirus
