Determination of Predominance of Influenza Virus Strains in the Americas
نویسندگان
چکیده
During 2001-2014, predominant influenza A(H1N1) and A(H3N2) strains in South America predominated in all or most subsequent influenza seasons in Central and North America. Predominant A(H1N1) and A(H3N2) strains in North America predominated in most subsequent seasons in Central and South America. Sharing data between these subregions may improve influenza season preparedness.
منابع مشابه
Determination of Oseltamivir Resistance Level by an H275Y Genotyping Assay among Influenza A (H1N1) Viruses in Hamadan Province, Iran
Introduction: Epidemics and deaths caused by influenza viruses are an important concern worldwide. The use of neuraminidase inhibitors such as oseltamivir is an effective and valuable way to treat the diseases caused by these viruses. However, the mutation in several parts of the gene leads to the emergence of drug-resistant strains, and an ever-increasing rise in drug-resistant strains is a gl...
متن کاملPhylogenetic Comparison of Influenza Virus Isolates from Three Medical Centers in Tehran with the Vaccine Strains during 2008-2009
Background: Influenza virus is a major infectious pathogen of the respiratory system causing a high degree of morbidity and mortality annually. The worldwide vaccines are decided and produced annually by World Health Organization and licensed companies based on the samples collected from all over the world. The aim of this study was to determine phylogenecity and heterogenecity of the circulati...
متن کاملAntigenic Variation of the Haemagglutinin Gene of the Influenza A (H1N1) pdm09 Virus Circulating in Shiraz, February-April 2013
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 ...
متن کاملBilateral Pulmonary Thromboembolism: An Unusual Presentation of Infection with Influenza A (H1N1) Virus
Swine flue is a highly contagious acute respiratory disease caused by a subtype of influenza A virus. Herein we present three patients with H1N1 infection complicated with pulmonary thromboembolism. The patients had chest pain and unexplained dyspnea. Imaging studies showed bilateral hilar predominance. Computed tomographic angiography confirmed bilateral thromboembolism (an unusual presentatio...
متن کاملDesigning of A Multi-epitope Recombinant Protein, Consisting of Several Conserved Epitopes from Hemagglutinin Protein of the H1N1 and H5N1 Strains of Influenza Virus by Immunoinformatics Approaches
Introduction: According to marked advances in bioinformatics studies, development of influenza vaccines has been greatly modified in many studies. In this study, we have designed a multi-epitope recombinant protein, consisting of several conserved epitopes from Hemagglutinin protein of the H1N1 and H5N1 strains of Influenza virus by immunoinformatics approaches. Materials and Methods: The regis...
متن کامل