Human bocavirus isolated from children with acute respiratory tract infections in Korea, 2010–2011
Identifieur interne : 001750 ( Main/Exploration ); précédent : 001749; suivant : 001751Human bocavirus isolated from children with acute respiratory tract infections in Korea, 2010–2011
Auteurs : Jong Gyun Ahn [Corée du Sud] ; Seong Yeol Choi [Corée du Sud] ; Dong Soo Kim [Corée du Sud] ; Ki Hwan Kim [Corée du Sud]Source :
- Journal of Medical Virology [ 0146-6615 ] ; 2014-12.
Abstract
Human bocavirus (HBoV) was first recognized in respiratory samples in 2005. The clinical importance of HBoV infection remains unclear. This report describes the clinical features and molecular phylogeny of HBoV isolates in children with acute respiratory infections. Nasopharyngeal aspirates were obtained from 1,528 children with acute respiratory infections between 2010 and 2011. Respiratory samples were screened for HBoV by multiplex PCR. A phylogenetic analysis of the HBoV VP1/VP2 gene was also undertaken. HBoV was detected in 187 (12.2%) of the 1,528 patients with a peak incidence of infection observed in patients aged 12–24 months. Coinfection with other respiratory viruses was observed in 107 (57.2%) of the HBoV‐positive children. The peak of HBoV activity occurred during the month of June in both 2010 and 2011. A higher previous history of wheezing (P = 0.016), a higher frequency of chest retraction (P < 0.001) and wheezing (P = 0.022), a higher respiratory symptom score (P = 0.002), and a longer duration of hospital stay (P = 0.021) were observed in HBoV‐positive children compared with the HBoV‐negative group. Phylogenetic analysis showed all 187 HBoV‐positive isolates were identified as HBoV 1, indicating minimal sequence variations among the isolates. A single lineage of HBoV 1 was found to have circulated in children with acute respiratory infections between 2010 and 2011 and was associated with several clinical characteristics including age, seasonality, and clinical severity with retraction, wheezing, and longer hospitalization. The clinical relevance of the minimal sequence variations of HBoV remains to be determined. J. Med. Virol. 86:2011–2018, 2014. © 2014 Wiley Periodicals, Inc.
Url:
DOI: 10.1002/jmv.23880
Affiliations:
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The clinical importance of HBoV infection remains unclear. This report describes the clinical features and molecular phylogeny of HBoV isolates in children with acute respiratory infections. Nasopharyngeal aspirates were obtained from 1,528 children with acute respiratory infections between 2010 and 2011. Respiratory samples were screened for HBoV by multiplex PCR. A phylogenetic analysis of the HBoV VP1/VP2 gene was also undertaken. HBoV was detected in 187 (12.2%) of the 1,528 patients with a peak incidence of infection observed in patients aged 12–24 months. Coinfection with other respiratory viruses was observed in 107 (57.2%) of the HBoV‐positive children. The peak of HBoV activity occurred during the month of June in both 2010 and 2011. A higher previous history of wheezing (P = 0.016), a higher frequency of chest retraction (P < 0.001) and wheezing (P = 0.022), a higher respiratory symptom score (P = 0.002), and a longer duration of hospital stay (P = 0.021) were observed in HBoV‐positive children compared with the HBoV‐negative group. Phylogenetic analysis showed all 187 HBoV‐positive isolates were identified as HBoV 1, indicating minimal sequence variations among the isolates. A single lineage of HBoV 1 was found to have circulated in children with acute respiratory infections between 2010 and 2011 and was associated with several clinical characteristics including age, seasonality, and clinical severity with retraction, wheezing, and longer hospitalization. The clinical relevance of the minimal sequence variations of HBoV remains to be determined. J. Med. Virol. 86:2011–2018, 2014. © 2014 Wiley Periodicals, Inc.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Ahn, Jong Gyun" sort="Ahn, Jong Gyun" uniqKey="Ahn J" first="Jong Gyun" last="Ahn">Jong Gyun Ahn</name></region><name sortKey="Ahn, Jong Gyun" sort="Ahn, Jong Gyun" uniqKey="Ahn J" first="Jong Gyun" last="Ahn">Jong Gyun Ahn</name><name sortKey="Choi, Seong Yeol" sort="Choi, Seong Yeol" uniqKey="Choi S" first="Seong Yeol" last="Choi">Seong Yeol Choi</name><name sortKey="Kim, Dong Soo" sort="Kim, Dong Soo" uniqKey="Kim D" first="Dong Soo" last="Kim">Dong Soo Kim</name><name sortKey="Kim, Dong Soo" sort="Kim, Dong Soo" uniqKey="Kim D" first="Dong Soo" last="Kim">Dong Soo Kim</name><name sortKey="Kim, Ki Hwan" sort="Kim, Ki Hwan" uniqKey="Kim K" first="Ki Hwan" last="Kim">Ki Hwan Kim</name><name sortKey="Kim, Ki Hwan" sort="Kim, Ki Hwan" uniqKey="Kim K" first="Ki Hwan" last="Kim">Ki Hwan Kim</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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