Abstract
Objective: Analyze the epidemiological characteristics of a cluster of influenza-like cases in a national high school in Jingxi City, Guangxi, to provide a basis for formulating influenza prevention and control strategies and measures. Methods: Descriptive epidemiological methods are used to describe and analyze the epidemiological characteristics of influenza-like cases. Results: A total of 48 student influenza-like cases were reported from April 8 to 21,2020, with an attack rate of 4.46% (48/1076), 20 males and 28 females, with a male-to-female ratio of 1:1.4; the main clinical feature is fever Accompanied by sore throat, cough, dry throat, sore throat, tonsil enlargement and other respiratory symptoms. The patient’s boby temperature was as high as 38.9°C, There were 15 people at 38.6-38.9°C, accounting for 31.25%, and 33 people at 38.0-38.5°C, accounting for 67.75%. The time of onset was April 14 with the largest number of patients, accounting for 18.75%. The incidence class was based on 2017 (15), The number of patients in the class was the largest, accounting for 16.67%. The age of onset was the largest in the 18-year-old age group, accounting for 72.92%; three batches of throat swab specimens from some patients were collected, a total of 29 people were sent to the Guangxi Baise City Center for Disease Control and prevention for experiment Laboratory tests showed that all samples in the three batches were negative for the nucleic acid test of the new coronavirus pneumonia virus and the influenza virus. Conclusion: According to the epidemiological characteristics, combined with the patient’s clinical manifestations and laboratory test results, the epidemic was determined to be a cluster of influenza-like cases. After timely prevention and control measures were taken, the epidemic was effectively controlled.
Highlights
From April 8 to 21, 2020, a cluster of influenza-like cases occurred in Jingxi Minority High school in Guangxi
Influenza-like cases are defined as clinical manifestations with fever and body temperature≥38°C, accompanied by cough or sore throat. patients who lack other laboratory confirmation can be diagnosed as influenza-like cases [1]
Using descriptive epidemiological methods. the data of influenza-like cases were statistically analyzed by Excel 2003 software, x2 test was used for counting data, and P
Summary
From April 8 to 21, 2020, a cluster of influenza-like cases occurred in Jingxi Minority High school in Guangxi. Guangxi Jingxi City is Located on the China-Vietnam border in southwestern Guangxi, mbordering Vietham to the south, with a border line of 152.5km, an average elevation of. The ports that communicate with Vietnam include Longbang National First-Class Port and Yuexu National Second-Class Port. It is the most populous county-level city in the border counties of Guangxi and Vietnam. It is a county-level tourist city in Guangxi, with frequent personnel flow and active border trade. The city is an economically underdeveloped area with low economic and cultural living standards, poor awareness of the prevention of respiratory infectious diseases such as influenza, and influenza, epidemics in crowded places such as primary and secondary schools
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