Document Detail

Pandemic H1N1 influenza virus causes a stronger inflammatory response than seasonal H1N1 influenza virus in ferrets.
MedLine Citation:
PMID:  21234768     Owner:  NLM     Status:  Publisher    
A 2009 H1N1 influenza virus pandemic, which had its origin in swine, caused severe illness and mortality in humans. Inflammatory responses may be responsible for pathogenesis caused by infection with influenza viruses. To better understand the pathogenic mechanism, clinical signs and inflammatory responses in ferrets infected with the pandemic H1N1 were compared with those caused by seasonal H1N1 influenza virus. Ferrets infected with the 2009 pandemic H1N1 virus displayed higher body temperatures, greater reduction in body weight, and higher viral titers in the tracheae and lungs. Levels of inflammatory cytokines, including interleukin-6, interferon-alpha, and tumor necrosis factor-alpha, were higher in the lungs of ferrets infected with the 2009 pandemic H1N1. The data support the idea that increased pathogenesis caused by the 2009 pandemic H1N1 influenza virus may have been partially mediated by a higher induction of pro-inflammatory cytokines in the lungs of affected humans or animals.
Young Myong Kang; Byung Min Song; Joo Sub Lee; Hyun Soo Kim; Sang Heui Seo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-1-15
Journal Detail:
Title:  Archives of virology     Volume:  -     ISSN:  1432-8798     ISO Abbreviation:  -     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-1-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7506870     Medline TA:  Arch Virol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Laboratory of Influenza Research, College of Veterinary Medicine, Chungnam National University, 220 Gung Dong, Yuseong Gu, Daejeon, 305-764, Korea.
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