A clinical analysis of 33 cases of H1N1 influenza A

Jie Yan; Yuguang Wang; Jiang Xiao; Sujuan Zhang; Zhihai Chen; Limin Guo; Yu Wang; Xin LI; Yanli XU; Ming Zhang; Xingwang LI

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A clinical analysis of 33 cases of H1N1 influenza A

VernacularTitle:甲型H1N1流行性感冒33例确诊病例临床分析
Author: Jie YAN ; Yuguang WANG ; Jiang XIAO ; Sujuan ZHANG ; Zhihai CHEN ; Limin GUO ; Yu WANG ; Xin LI ; Yanli XU ; Ming ZHANG ; Xingwang LI
Publication Type:Journal Article
Keywords: Influenza A virus; H1N1 subtype; Clinical medicine
From: Chinese Journal of Internal Medicine 2009;48(10):830-832
CountryChina
Language:Chinese
Abstract: Objective To review the clinical characteristics of H1N1 influenza A, and suggest the clinical practices for the diagnosis and treatment of H1N1 influenza A in the future. Methods Thirty-three cases of H1N1 influenza A hospitalized in Beijing Ditan Hospital from May 15 to June 22, 2009 were studied and the clinical data were statistically analyzed with SPSS 11.0 for Windows. Results Twenty-five of the 33 patients had a history of travelling in America, Canada, Japan etc within a week; the latent period was between 1 and 6 days in 12 close contact patients. The main symptoms of H1N1 influenza A are fever (66.7%), dry cough (60.6%), cough with sputum (42.4%) and sore throat (36.4%). The laboratory tests in 24 cases(72.7%) were normal, while mild abnormal results were found in the remaining patients.All of the 33 cases were discharged according to the Standard of Diagnosis and Treatment of H1N1 Influenza A published by The Minister of Health, China. The period between 2-consecutive negative results in viral nucleic acid RT-PCR detection and the presenting symptom was 2 to 16 days and the period of hospitalization was 3 to 16 days. Conclusion The new type of H1N1 influenza A is characterised by mild symptoms, short period of hospitalization and good prognosis. All the patients can be cured, if they do not suffer from other severe chronic disease.