Abstract
The 1918 influenza pandemic was unusually severe, resulting in about 50 million deaths worldwide1. The 1918 virus is also highly pathogenic in mice, and studies have identified a multigenic origin of this virulent phenotype in mice2,3,4. However, these initial characterizations of the 1918 virus did not address the question of its pathogenic potential in primates. Here we demonstrate that the 1918 virus caused a highly pathogenic respiratory infection in a cynomolgus macaque model that culminated in acute respiratory distress and a fatal outcome. Furthermore, infected animals mounted an immune response, characterized by dysregulation of the antiviral response, that was insufficient for protection, indicating that atypical host innate immune responses may contribute to lethality. The ability of influenza viruses to modulate host immune responses, such as that demonstrated for the avian H5N1 influenza viruses5, may be a feature shared by the virulent influenza viruses.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout




Similar content being viewed by others
References
Johnson, N. P. & Mueller, J. Updating the accounts: global mortality of the 1918–1920 “Spanish” influenza pandemic. Bull. Hist. Med. 76, 105–115 (2002)
Tumpey, T. M. et al. Existing antivirals are effective against influenza viruses with genes from the 1918 pandemic virus. Proc. Natl Acad. Sci. USA 99, 13849–13854 (2002)
Kobasa, D. et al. Enhanced virulence of influenza A viruses with the haemagglutinin of the 1918 pandemic virus. Nature 431, 703–707 (2004)
Tumpey, T. M. et al. Characterization of the reconstructed 1918 Spanish influenza pandemic virus. Science 310, 77–80 (2005)
Seo, S. H., Hoffmann, E. & Webster, R. G. Lethal H5N1 influenza viruses escape host anti-viral cytokine responses. Nature Med. 8, 950–954 (2002)
Reid, A. H., Fanning, T. G., Hultin, J. V. & Taubenberger, J. K. Origin and evolution of the 1918 “Spanish” influenza virus hemagglutinin gene. Proc. Natl Acad. Sci. USA 96, 1651–1656 (1999)
Reid, A. H., Fanning, T. G., Janczewski, T. A. & Taubenberger, J. K. Characterization of the 1918 “Spanish” influenza virus neuraminidase gene. Proc. Natl Acad. Sci. USA 97, 6785–6790 (2000)
Basler, C. F. et al. Sequence of the 1918 pandemic influenza virus nonstructural gene (NS) segment and characterization of recombinant viruses bearing the 1918 NS genes. Proc. Natl Acad. Sci. USA 98, 2746–2751 (2001)
Reid, A. H., Fanning, T. G., Janczewski, T. A., McCall, S. & Taubenberger, J. K. Characterization of the 1918 “Spanish” influenza virus matrix gene segment. J. Virol. 76, 10717–10723 (2002)
Reid, A. H., Fanning, T. G., Janczewski, T. A., Lourens, R. M. & Taubenberger, J. K. Novel origin of the 1918 pandemic influenza virus nucleoprotein gene. J. Virol. 78, 12462–12470 (2004)
Taubenberger, J. K. et al. Characterization of the 1918 influenza virus polymerase genes. Nature 437, 889–893 (2005)
Neumann, G. et al. Generation of influenza A viruses entirely from cloned cDNAs. Proc. Natl Acad. Sci. USA 96, 9345–9350 (1999)
Rimmelzwaan, G. F. et al. Pathogenesis of influenza A (H5N1) virus infection in a primate model. J. Virol. 75, 6687–6691 (2001)
Kuiken, T., Rimmelzwaan, G. F., Van Amerongen, G. & Osterhaus, A. D. Pathology of human influenza A (H5N1) virus infection in cynomolgus macaques (Macaca fascicularis). Vet. Pathol. 40, 304–310 (2003)
Winternitz, M. C., Wason, I. M. & McNamara, F. P. The Pathology of Influenza. (Yale Univ. Press, New Haven, Connecticut, 1920)
Hayden, F. G. et al. Local and systemic cytokine responses during experimental human influenza A virus infection. Relation to symptom formation and host defense. J. Clin. Invest. 101, 643–649 (1998)
Skoner, D. P., Gentile, D. A., Patel, A. & Doyle, W. J. Evidence for cytokine mediation of disease expression in adults experimentally infected with influenza A virus. J. Infect. Dis. 180, 10–14 (1999)
Kash, J. C. et al. Genomic analysis of increased host immune and cell death responses induced by 1918 influenza virus. Nature 443, 578–581 (2006)
de Jong, M. D. et al. Fatal outcome of human influenza A (H5N1) is associated with high viral load and hypercytokinemia. Nature Med. 12, 1203–1207 (2006)
Matikainen, S. et al. Tumor necrosis factor alpha enhances influenza A virus-induced expression of antiviral cytokines by activating RIG-I gene expression. J. Virol. 80, 3515–3522 (2006)
Kato, H. et al. Differential roles of MDA5 and RIG-I helicases in the recognition of RNA viruses. Nature 441, 101–105 (2006)
Garcia-Sastre, A. et al. Influenza A virus lacking the NS1 gene replicates in interferon-deficient systems. Virology 252, 324–330 (1998)
Krug, R. M., Yuan, W., Noah, D. L. & Latham, A. G. Intracellular warfare between human influenza viruses and human cells: the roles of the viral NS1 protein. Virology 309, 181–189 (2003)
Li, S., Min, J. Y., Krug, R. M. & Sen, G. C. Binding of the influenza A virus NS1 protein to PKR mediates the inhibition of its activation by either PACT or double-stranded RNA. Virology 349, 13–21 (2006)
Pichlmair, A. et al. RIG-I-mediated antiviral responses to single-stranded RNA bearing 5′ phosphates. Science 314, 997–1001 (2006)
Baas, T. et al. Integrated molecular signature of disease: analysis of influenza virus-infected macaques through functional genomics and proteomics. J. Virol. 80, 10813–10828 (2006)
Reed, L. J. & Muench, H. A simple method of estimating fifty per cent endpoints. Am. J. Hyg. 27, 493–497 (1938)
Kash, J. C. et al. Global suppression of the host antiviral response by Ebola- and Marburgviruses: increased antagonism of the type I interferon response is associated with enhanced virulence. J. Virol. 80, 3009–3020 (2006)
Brazma, A. et al. Minimum information about a microarray experiment (MIAME)—toward standards for microarray data. Nature Genet. 29, 365–371 (2001)
Al-Shahrour, F., Minguez, P., Vaquerizas, J. M., Conde, L. & Dopazo, J. BABELOMICS: a suite of web tools for functional annotation and analysis of groups of genes in high-throughput experiments. Nucleic Acids Res. 33, W460–W464 (2005)
Acknowledgements
We thank D. Dick, J. Gren, A. Grolla and P. Melito for help with animal care, and V. Carter, M. Thomas and S. Proll for microarray technical assistance. We also thank J. Gilbert for editing the manuscript. This work was supported by the Public Health Agency of Canada (D.K., S.M.J. and H.F.), by grants-in-aid for scientific research on priority areas from the Ministries of Education, Culture, Sports, Science, and Technology, Japan (Y.K. and K.S.), by CREST (Japan Science and Technology Agency; Y.K.), and by private grants to Y.K.
Microarray data were deposited at Arrayexpress with accession number E-TABM-181.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing financial interests.
Supplementary information
Supplementary Information (download PDF )
This file contains Supplementary figures 1-4 with legends and Supplementary Tables 1-2. (PDF 1221 kb)
Rights and permissions
About this article
Cite this article
Kobasa, D., Jones, S., Shinya, K. et al. Aberrant innate immune response in lethal infection of macaques with the 1918 influenza virus. Nature 445, 319–323 (2007). https://doi.org/10.1038/nature05495
Received:
Accepted:
Issue date:
DOI: https://doi.org/10.1038/nature05495
This article is cited by
-
A nomogram based on the expression level of angiopoietin-like 4 to predict the severity of community-acquired pneumonia
BMC Infectious Diseases (2023)
-
In vitro anti-influenza assessment of anionic compounds ascorbate, acetate and citrate
Virology Journal (2022)
-
Innate Immune Response and Inflammasome Activation During SARS-CoV-2 Infection
Inflammation (2022)
-
Quantity of IgG response to SARS-CoV-2 spike glycoprotein predicts pulmonary recovery from COVID-19
Scientific Reports (2022)
-
Patient hematology during hospitalization for viral pneumonia caused by SARS-CoV-2 and non-SARS-CoV-2 agents: a retrospective study
European Journal of Medical Research (2021)


