High viral load of human bocavirus correlates with duration of wheezing in children with severe lower respiratory tract infection.

Autor: Yu Deng, Xiaoyang Gu, Xiaodong Zhao, Jian Luo, Zhengxiu Luo, Lijia Wang, Zhou Fu, Xiqiang Yang, Enmei Liu
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: PLoS ONE, Vol 7, Iss 3, p e34353 (2012)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0034353
Popis: BACKGROUND: Human bocavirus (HBoV) is a newly discovered parvovirus and increasing evidences are available to support its role as an etiologic agent in lower respiratory tract infection (LRTI). The objective of this study is to assess the impact of HBoV viral load on clinical characteristics in children who were HBoV positive and suffered severe LRTI. METHODS: Lower respiratory tract aspirates from 186 hospitalized children with severe LRTI were obtained by bronchoscopy. HBoVs were detected by real-time PCR and other 10 infectious agents were examined using PCR and/or direct fluorescent assay. RESULTS: Thirty-one patients (24.6%) were tested positive for HBoV in the respiratory tract aspirates. Fifteen samples had a high viral load (>10(4) copies/mL) and the other sixteen samples had a low viral load (
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