mortality/aging
• mice exhibit greater mortality following influenza A PR8
• mice infected with the less pathogenic H3N2 influenza A/HKx31 virus
• mice receiving a transfer of wild-type alveolar macrophages show an increase in survival following influenza A infection
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immune system
• alveolar macrophage frequency and numbers rapidly decline following influenza A x31 infection and this loss is associated with a rapid increase in macrophage apoptosis
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• influenza A x31-infected mice show increased numbers of CD11bhi dendritic cells at 3 dpi but not 6 dpi
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• alveolar macrophages from naive mice are skewed toward an M2-like macrophage polarization
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• influenza A x31-infected mice show decreased number of alveolar macrophages at 3 and 6 dpi
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• BAL fluid of mice infected with a high dose of influenza A x31 shows increased IL-6 levels, but not IFN-gamma, TNF, or IL-1alpha
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• BAL fluid of mice infected with a high dose of influenza A x31 shows increased IFN-beta levels
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• influenza A PR8 infected mice exhibit increased viral load 6 days post infection (dpi) and greater mortality than controls
• influenza A x31 infected mice exhibit increased viral load, increased weight loss, greater mortality, and more diffuse immune infiltrate around the bronchioles than wild-type mice
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• mice exhibit greater mortality following influenza A PR8
• mice infected with the less pathogenic H3N2 influenza A/HKx31 virus
• mice receiving a transfer of wild-type alveolar macrophages show an increase in survival following influenza A infection
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growth/size/body
• mice infected with influenza A x31 show increased weight loss beginning on day 3 post infection
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hematopoietic system
• alveolar macrophage frequency and numbers rapidly decline following influenza A x31 infection and this loss is associated with a rapid increase in macrophage apoptosis
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• influenza A x31-infected mice show increased numbers of CD11bhi dendritic cells at 3 dpi but not 6 dpi
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• alveolar macrophages from naive mice are skewed toward an M2-like macrophage polarization
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• influenza A x31-infected mice show decreased number of alveolar macrophages at 3 and 6 dpi
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homeostasis/metabolism
• BAL fluid of mice infected with a high dose of influenza A x31 shows increased IL-6 levels, but not IFN-gamma, TNF, or IL-1alpha
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• BAL fluid of mice infected with a high dose of influenza A x31 shows increased IFN-beta levels
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respiratory system
• influenza A x31-infected mice show decreased number of alveolar macrophages at 3 and 6 dpi
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cellular
• alveolar macrophage frequency and numbers rapidly decline following influenza A x31 infection and this loss is associated with a rapid increase in macrophage apoptosis
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