Analysis of the epidemiological characteristics and pathogenic detection results of other infectious diarrhea in Hefei City from 2012 to 2022
Objective To understand the epidemiological and etiological characteristics of other infectious diarrhea(OID)in Hefei area for scientific basis to plan prevention and control measures against this infection.Methods The case data of OID reported and public health emergencies in Hefei City from 2012 to 2022 were derived from the China Disease Prevention and Control Information System.The descriptive epidemiological method was used to analyze the reported incidence,pathogen constituent ratio,attack rate and other indicators,and the characteristics of pathogen spec-trum distribution and temporal,regional and population distribution.Results In total,218 484 cases of OID were re-ported in Hefei area from 2012 to 2022.The annual reported incidence rate ranged from 158.40/100 000 to 370.50/100 000,with an average reported incidence rate of 245.85/100 000.The overall reported incidence rate tended to increase initial-ly,and then decreased.The temporal distribution in a single year showed a bimodal distribution,the summer peak is from July to August,and the winter peak is from December to January of next year.Of the reported OID cases,123 712 were males and 94 772 were females,with a male-to-female ratio of 1.31∶1,the average annual reported incidence rates of male and female were 271.34/100 000 and 219.01/100 000,respectively.Of all reported cases,141 716 cases(64.86%)were people aged 5 years and below,136 294 cases(62.38%)were scattered children.Pathogens were con-firmed in 46 924 cases(21.48%)of the reported cases,which primarily involved viruses(44 694 cases,95.25%).Diar-rhea caused by rotavirus infection accounted for 88.01%(39 337/44 694)of the total cases of viral diarrhea.From 2012 to 2022,a total of 28 public health emergencies resulted from OID were reported in Hefei,with a total of 1 542 cases and 62 828 people affected.The total attack rate was 2.45%,23 incidents were caused by norovirus infection,and 26 in-cidents occurred in schools.Conclusion The reported incidence of OID in Hefei City remains relatively higher.Chil-dren aged 5 and below should be the focus of prevention and control.Rotavirus is the important pathogen,and norovi-rus infection is responsible for the emergency.These findings suggest that it is necessary to strengthen the health educa-tion in key institutions such as schools and key population before the epidemic peak,execute monitoring and early warn-ing,conduct risk assessment,improve the awareness of prevention and control of the masses,and totally implement pre-vention and control measures.
Other infectious diarrheaEpidemiologyPathogenHefei City
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