Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan
Identifieur interne : 001953 ( PascalFrancis/Corpus ); précédent : 001952; suivant : 001954Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan
Auteurs : Chia-Yu Chi ; Shih-Min Wang ; Chia-Chun Lin ; Hsuan-Chen Wang ; Jen-Ren Wang ; Ih-Jen Su ; Ching-Chuan LiuSource :
- The Pediatric infectious disease journal [ 0891-3668 ] ; 2008.
Descripteurs français
English descriptors
- KwdEn :
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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Format Inist (serveur)
NO : | PASCAL 08-0363134 INIST |
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ET : | Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan |
AU : | CHI (Chia-Yu); WANG (Shih-Min); LIN (Chia-Chun); WANG (Hsuan-Chen); WANG (Jen-Ren); SU (Ih-Jen); LIU (Ching-Chuan) |
AF : | Division of Clinical Research, National Health Research Institutes/Chunan, Miaoli/Taïwan (1 aut., 3 aut., 4 aut., 6 aut.); Department of Pediatrics, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (1 aut., 7 aut.); Department of mergency Medicine, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (2 aut.); Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (5 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | The Pediatric infectious disease journal; ISSN 0891-3668; Coden PIDJEV; Etats-Unis; Da. 2008; Vol. 27; No. 7; Pp. 640-645; Bibl. 36 ref. |
LA : | Anglais |
EA : | 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. |
CC : | 002B05C02C; 002B01 |
FD : | Infection; Grippe B; Symptomatologie; Taiwan; Victoria; Enfant; Pédiatrie |
FG : | Virose; Asie; Australie; Océanie; Homme |
ED : | Infection; Influenza B; Symptomatology; Taiwan; Victoria; Child; Pediatrics |
EG : | Viral disease; Asia; Australia; Oceania; Human |
SD : | Infección; Gripe B; Sintomatología; Taiwan; Victoria; Niño; Pediatría |
LO : | INIST-20356.354000200294770110 |
ID : | 08-0363134 |
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Pascal:08-0363134Le document en format XML
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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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<ET>Clinical Features of Children Infected With Different Strains of Influenza B in Southern Taiwan</ET>
<AU>CHI (Chia-Yu); WANG (Shih-Min); LIN (Chia-Chun); WANG (Hsuan-Chen); WANG (Jen-Ren); SU (Ih-Jen); LIU (Ching-Chuan)</AU>
<AF>Division of Clinical Research, National Health Research Institutes/Chunan, Miaoli/Taïwan (1 aut., 3 aut., 4 aut., 6 aut.); Department of Pediatrics, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (1 aut., 7 aut.); Department of mergency Medicine, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (2 aut.); Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College and Hospital/Tainan/Taïwan (5 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>The Pediatric infectious disease journal; ISSN 0891-3668; Coden PIDJEV; Etats-Unis; Da. 2008; Vol. 27; No. 7; Pp. 640-645; Bibl. 36 ref.</SO>
<LA>Anglais</LA>
<EA>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.</EA>
<CC>002B05C02C; 002B01</CC>
<FD>Infection; Grippe B; Symptomatologie; Taiwan; Victoria; Enfant; Pédiatrie</FD>
<FG>Virose; Asie; Australie; Océanie; Homme</FG>
<ED>Infection; Influenza B; Symptomatology; Taiwan; Victoria; Child; Pediatrics</ED>
<EG>Viral disease; Asia; Australia; Oceania; Human</EG>
<SD>Infección; Gripe B; Sintomatología; Taiwan; Victoria; Niño; Pediatría</SD>
<LO>INIST-20356.354000200294770110</LO>
<ID>08-0363134</ID>
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