PandemieGrippaleV1, Main, Merge, bibRecord, 004C52

Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan

Identifieur interne : 004C52 ( Main/Merge ); précédent : 004C51; suivant : 004C53

Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan

Auteurs : Chia-Yu Chi [Taïwan] ; Shih-Min Wang [Taïwan] ; Chia-Chun Lin [Taïwan] ; Hsuan-Chen Wang [Taïwan] ; Jen-Ren Wang [Taïwan] ; Ih-Jen Su [Taïwan] ; Ching-Chuan Liu [Taïwan]

Source :

The Pediatric infectious disease journal [ 0891-3668 ] ; 2008.

RBID : Pascal:08-0363134

Descripteurs français

Pascal (Inist)
- Infection, Grippe B, Symptomatologie, Taiwan, Victoria, Enfant, Pédiatrie.
Wicri :
- topic : Enfant, Pédiatrie.

English descriptors

KwdEn :
- Child, Infection, Influenza B, Pediatrics, Symptomatology, Taiwan, Victoria.

Abstract

Background: This study was designed to determine the clinical characteristics of children infected with different strains of influenza B viruses isolated in southern Taiwan. The clinical features were compared with influenza A infection occurring in the same period. Methods: All children enrolled in the study had laboratory-confirmed infection with influenza A or B viruses. Influenza B speciation was performed by RNA extraction, cDNA synthesis, and amplification by polymerase chain reaction and sequencing. Demographic data, clinical findings, diagnoses, and outcomes were obtained. Results: During the study period, 163 strains of influenza A and 118 strains of influenza B were isolated. The Yamagata-like strains were most prevalent in 2001. New reassortant strains were identified since 2002 and became predominant in 2005 and 2006. Children with influenza B were more likely than those with influenza A to be diagnosed as upper respiratory tract infection, myositis, and gastroenteritis (P < 0.05). Children infected with Yamagata-like strains were more likely to develop lower respiratory tract infection (P < 0.05) and accounted for all cases of invasive disease. Children infected with the Victoria-like group had the longest hospital stays associated with severe bacterial superinfection. Conclusions: Currently new reassortant influenza B viruses are the predominant strains circulating in southern Taiwan. There is considerable similarity of clinical features between influenza A and B in children. The Yamagata-like strains were associated with more invasive infections. Continuous influenza virus surveillance is essential particularly in Taiwan where pandemic strains tend to appear earlier than in other countries.

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Pascal:08-0363134

Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Child</term>
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<front><div type="abstract" xml:lang="en">Background: This study was designed to determine the clinical characteristics of children infected with different strains of influenza B viruses isolated in southern Taiwan. The clinical features were compared with influenza A infection occurring in the same period. Methods: All children enrolled in the study had laboratory-confirmed infection with influenza A or B viruses. Influenza B speciation was performed by RNA extraction, cDNA synthesis, and amplification by polymerase chain reaction and sequencing. Demographic data, clinical findings, diagnoses, and outcomes were obtained. Results: During the study period, 163 strains of influenza A and 118 strains of influenza B were isolated. The Yamagata-like strains were most prevalent in 2001. New reassortant strains were identified since 2002 and became predominant in 2005 and 2006. Children with influenza B were more likely than those with influenza A to be diagnosed as upper respiratory tract infection, myositis, and gastroenteritis (P < 0.05). Children infected with Yamagata-like strains were more likely to develop lower respiratory tract infection (P < 0.05) and accounted for all cases of invasive disease. Children infected with the Victoria-like group had the longest hospital stays associated with severe bacterial superinfection. Conclusions: Currently new reassortant influenza B viruses are the predominant strains circulating in southern Taiwan. There is considerable similarity of clinical features between influenza A and B in children. The Yamagata-like strains were associated with more invasive infections. Continuous influenza virus surveillance is essential particularly in Taiwan where pandemic strains tend to appear earlier than in other countries.</div>
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Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan

Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri