摘要
Abstract
Objective To analyze the epidemiological characteristics of influenza A virus infection outbreaks in children aged 3-12 years.Methods From July 2022 to December 2023 in Zibo Maternal and Child Health Hospital,110 children with influenza A virus infection were selected as the study objects,and their clinical data were analyzed.Results Among the 110 children included,60 cases were boys(54.55%)and 50 cases were girls(45.45%).There were 75 cases(68.18%)aged 3 to 6 years,and the epidemic time was mainly from December to February of the following year[104(94.55%)].There were 94 cases with fever(85.45%),82 cases with cough(74.55%)and 60 cases with tolerance(54.55%).The main complications were pneumonia(26.36%),encephalitis(13.64%)and myocardial injury(8.18%).The white blood cell count of 89 cases(80.91%)ranged from 4.0×109/L to 10.0×109/L,the neutrophil percentage of 52 cases(47.27%)ranged from 50.0%to 70.0%,and the lymphocyte percentage of 64 cases(58.18%)ranged from 20.0%to 40.0%.The monocyte percentage of 60 cases(54.55%)was>10.0%,the lymphocyte absolute value of 90 cases(81.82%)was 0.8×109/L-4.0×109/L,and the C-reactive protein of 63 cases(57.27%)was≥5.0 mg/L.The imaging results showed that 24 cases(21.82%)involved unilateral lung and 86 cases(78.18%)involved bilateral lung.There were 36 cases(32.73%)of increased lung texture,16 cases(14.55%)of ground glass change,and 36 cases(32.73%)of diffuse ground glass and patchy consolidation in both lungs.Conclusion Influenza A virus infection occurs mostly in spring and winter,and is most common in children aged 3 to 6 years.The main manifestations of these children are fever and cough.The white blood cell count and neutrophil percentage of children are normal or increased,and the lymphocyte percentage can be reduced,and a variety of abnormalities can be seen on lung imaging.In addition,influenza A virus infection can cause severe pneumonia,encephalitis and myocardial injury complications.关键词
儿童/甲型流感/流行病学特征Key words
Children/Influenza A/Epidemiological characteristics分类
医药卫生
