Tài liệu Báo cáo y học: "2009 H1N1 Influenza and Experience in Three Critical Care Unit"

In 2009, cases of influenza like illness were first reported in Mexico on March 18; the outbreak was subsequently confirmed as H1N1 influenza. A Novel H1N1 swine origin influenza virus has led to a worldwide pandemic (1). In the affected patients, a novel swine origin influenza A (H1N1) virus (S-OIV) with molecular features of North American and Eurasian swine, avian, and human influenza viruses were isolated (2). In the same month, the World Health Organization (WHO) classified the global spread of this virus as a public health event of international concern. After documentation of human to human transmission of the virus in at least three countries of two WHO regions, the WHO raised the pandemic