Department of Microbiology, Indira Gandhi Government Medical College, Nagpur, India.
Indian J Public Health. 2012 Jul-Sep;56(3):242-4. doi: 10.4103/0019-557X.104267.
Swine-flu is a viral fever caused by a new mutated strain Influenza A virus subtype H1N1, which infects humans. Pandemic H1N1 (pH1N1/2009) virus was detected in the first quarter of 2009 in the west coastal region of North America and spread very rapidly to the other countries during April-June, 2009. This study was conducted to assess the epidemiology of pandemic H1N1 strains using a cross-sectional study design in a tertiary hospital. The symptomatic patients attending the flu outpatient department (OPD)/emergency from August 2009 to April 2011 at Indira Gandhi Government Medical College, Nagpur were included using a standard case definition. A total of 67 (27.01%) samples from 247 patients were pandemic influenza A/H1N1 positive. None of the patients had a history of foreign travel, whereas 23.88% of the patients gave history of travel to an endemic area. Overall, 22.38% of the patients came in contact with proven cases of pandemic H1N1. pH1N1 transmission activity has increased since May 2010.
猪流感是一种由新型变异株甲型 H1N1 流感病毒引起的病毒性发热，可感染人类。2009 年第一季度在北美西海岸地区检测到大流行性 H1N1（pH1N1/2009）病毒，并于 2009 年 4 月至 6 月期间迅速传播到其他国家。本研究采用横断面研究设计，在一家三级医院评估大流行性 H1N1 株的流行病学情况。2009 年 8 月至 2011 年 4 月，采用标准病例定义，选取因流感症状而在那格浦尔的英迪拉·甘地政府医学院流感门诊（OPD）/急诊就诊的患者作为研究对象。在 247 例患者中，共有 67 例（27.01%）样本为大流行性甲型 H1N1 阳性。所有患者均无境外旅行史，而 23.88%的患者有前往流行地区的旅行史。总体而言，22.38%的患者与已确诊的大流行性 H1N1 病例有接触。自 2010 年 5 月以来，pH1N1 的传播活动有所增加。
