Article (Scientific journals)
Influenza A strain-dependent pathogenesis in fatal H1N1 and H5N1 infections of mice
Garigliany, Mutien-Marie; Habyarimana, Jean Belt Adélite; Lambrecht, Bénédicte et al.
2010In Emerging Infectious Diseases, 16 (4), p. 595-603
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Keywords :
influenza; ARDS; pneumonia
Abstract :
[en] Two different influenza A viruses showing no pathogenicity towards the laboratory mouse were forced to evolve by serial passaging. Although both adapted viruses evoked diffuse alveolar damage and showed a similar 50% mouse lethal dose and the same peak lung concentration, they elicited dramatically different pathological signatures and ARDS courses. In the absence of any virus labeling, a histologist unaware of which infection he was looking at could readily distinguish infections caused by these two viruses. This suggests that fatal infections caused by different highly virulent influenza A viruses do not necessarily share the same pathogenesis. The different histological pictures shown here refute the hypothesis of a single, universal “cytokine storm” underlying all fatal influenzal diseases. Research is thus crucially needed to identify underlying sets of virulence markers and to examine whether it might be advantageous to tailor treatment to the influenza virus pathotype.
Disciplines :
Immunology & infectious disease
Author, co-author :
Garigliany, Mutien-Marie  ;  Université de Liège - ULiège > Département de Morphologie et Pathologie > Pathologie spéciale et autopsies
Habyarimana, Jean Belt Adélite ;  Université de Liège - ULiège > Département de Morphologie et Pathologie > Pathologie spéciale et autopsies
Lambrecht, Bénédicte;  Centre d'Etudes et de Recherches Vétérinaires Agronomiques = Centrum voor Onderzoek in Diergeneeskunde en Agrochemie - CERVA=CODA > Virologie
Van de Paar, Els ;  Université de Liège - ULiège > Département de Morphologie et Pathologie > Pathologie spéciale et autopsies
Cornet, Anne ;  Université de Liège - ULiège > Département de Morphologie et Pathologie > Pathologie spéciale et autopsies
van den Berg, Thierry;  Centre d'Etudes et de Recherches Vétérinaires Agronomiques = Centrum voor Onderzoek in Diergeneeskunde en Agrochemie - CERVA=CODA > Virologie
Desmecht, Daniel ;  Université de Liège - ULiège > Département de Morphologie et Pathologie > Pathologie spéciale et autopsies
Language :
English
Title :
Influenza A strain-dependent pathogenesis in fatal H1N1 and H5N1 infections of mice
Publication date :
April 2010
Journal title :
Emerging Infectious Diseases
ISSN :
1080-6040
eISSN :
1080-6059
Publisher :
Centers for Disease Control & Prevention (CDC), Atlanta, United States - Georgia
Volume :
16
Issue :
4
Pages :
595-603
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 January 2010

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