Virological features and clinical manifestations associated with human metapneumovirus:: A new paramyxovirus responsible for acute respiratory-tract infections in all age groups

Virological features and clinical manifestations associated with human metapneumovirus:: A new paramyxovirus responsible for acute respiratory-tract infections in all age groups
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DOI:
10.1086/344319
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发表时间:
2002-11-01
影响因子:
6.4
通讯作者:
Anderson, LJ
Anderson, LJ
中科院分区:
医学2区
文献类型:
--
作者:
Boivin, G;Abed, Y;Anderson, LJ

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回顾性分析了1993年以来加拿大因各种呼吸系统疾病住院的患者中与新型人偏肺病毒(HMPV)相关的病毒学特征和临床表现。通过逆转录聚合酶链反应,从恒河猴种类(LLC-MK2)细胞中分离到38株HMPV阳性的呼吸道病毒,这些病毒聚集在2个系统发育群中。年龄< 0岁的儿童和年龄165岁的老年人分别占hmpv感染病例的35.1%和45.9%。在住院儿童中,最常见的诊断是肺炎(66.7%)和细支气管炎(58.3%),而支气管炎和/或支气管痉挛(60%)和肺炎(40%)在老年人中最常见。在15例肺炎患者中,4例(26.7%)存在免疫抑制,6例(40%)为婴幼儿
The virological features and clinical findings associated with the new human metapneumovirus (HMPV) were examined retrospectively in Canadian patients hospitalized for various respiratory conditions since 1993. Thirty-eight previously unidentified respiratory viruses isolated from rhesus monkey kindey (LLC-MK2) cells were found to be positive for HMPV by reverse-transcription polymerase chain reaction, and those strains clustered in 2 phylogenetic groups. Children aged < years and elderly subjects aged 1 65 years represented 35.1% and 45.9% of the HMPV-infected cases, respectively. In hospitalized children, the most frequent diagnoses were pneumonitis (66.7%) and bronchiolitis (58.3%), whereas bronchitis and/or bronchospasm (60%) and pneumonitis (40%) were most commonly seen in elderly subjects. Of the 15 patients with pneumonitis, 4 (26.7%) had immunosuppressive conditions and 6 (40%) were infants aged