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BACKGROUND Human metapneumovirus (HMPV) is a paramyxovirus associated with respiratory illness. The genotypes of HMPV isolates in Brazil have not been well characterized. OBJECTIVES To investigate(More)
Important Findings The main objective of the present study was to better understand the genetic diversity aspects of avian coronavirus in Brazilian commercial poultry and pigeons. The study results(More)
The avian paramyxovirus type 1 (APMV-1), or Newcastle disease virus (NDV), comprise a diverse group of viruses with a single-stranded, negative-sense RNA genome. Historically, two systems have been(More)
To detect the presence of infectious bronchitis virus or avian coronavirus, a nested reverse transcriptase PCR (RT-PCR) method was developed with the aim of amplifying a fragment of 530 bases,(More)
Human respiratory syncytial virus (hRSV) is recognized as the most important viral agent of serious respiratory tract diseases in the pediatric population worldwide. A prospective study for hRSV was(More)