Surveillance for influenza virus in pigs in the United Kingdom during spring 2010 detected a novel reassortant influenza virus. This virus had genes encoding internal proteins from pandemic (H1N1) 2009 virus and hemagglutinin and neuraminidase genes from swine influenza virus (H1N2). Our results demonstrate processes contributing to influenza virus heterogeneity.

Background: A new pandemic influenza A (H1N1) emerged in April 2009, causing considerable morbidity and mortality. Since mutations in the haemagglutinin (HA) may influence the antigenicity and pathogenicity of the virus, continued epidemiological and molecular characterization for the effective control of pandemic flu and developing of more appropriate vaccine is crucial. Objective: To monitor ...

background: the h9n2 subtype of avian influenzaviruses (aivs) have spread in asia and middle east countriesand have become a serious threat to poultry industry in iran.objectives:characterization of genes of h9n2 subtype involvingin pathogenicity and diagnosis are crucial in control of avianinfluenza outbreaks. the nonstructural (ns) gene and its proteinproducts (ns1 & ns2) are important as...

respiratory failure is a serious complication of h1n1 influenza that, if not properly managed, can cause death. when mechanical ventilation is not effective, the only way to save the patient’s life is extracorporeal membrane oxygenation (ecmo). a prolonged type of cardiopulmonary bypass, ecmo is a high-cost management modality compared to other conventional types and its maintenance requires sk...

background: influenza a virus is the most virulent human pathogen and causes the most serious problem. having epidemiological knowledge about this disease is important. the aim of this study was to determine the prevalence of influenza a/h3n2 virus infection in northern iran from 2011 to 2013 using the real-time polymerase chain reaction (rt-pcr). methods: in this cross-sectional study 57 sampl...

BACKGROUND Defining dispersal of influenza virus via aerosol is essential for the development of prevention measures. METHODS During the 2010-2011 influenza season, subjects with influenza-like illness were enrolled in an emergency department and throughout a tertiary care hospital, nasopharyngeal swab specimens were obtained, and symptom severity, treatment, and medical history were recorded...