[analysis of clinical features of community-acquired pneumonia caused by pediatric respiratory syncytial virus and human metapneumovirus].we retrospectively reviewed the background, clinical features, blood tests, and complications in the 720 children seen for acute respiratory tract infection from july 2004 to december 2005. of these, 75 (10.5%) were diagnosed with pneumonia due to respiratory syncytial virus (rsv) and 19 (2.6%) with pneumonia due to human metapneumovirus (hmpv) based on multiplex pcr analysis of nasopharyngeal samples. rsv was pcr-positive mostly in winter, -from november to january-, and hmpv mostly in spring, ...201020170013
a phylogenetic study of human respiratory syncytial viruses group a and b strains isolated in two cities in japan from 1980-2002.the circulation pattern and genetic evolution of respiratory syncytial virus (rsv) in japan were examined based on 109 rsv field strains isolated over 20 seasons (1980-2002) in two cities, sapporo and tokyo. the second hypervariable region of the large glycoprotein (g) gene was amplified by rt-pcr and the products sequenced directly. the nucleotide sequences were compared to those representatives of rsv genotypes identified previously. japanese group a and b isolates clustered into five and four ...200515834873
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