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Short Communication |
Division of Immunology and Cell Biology, John Curtin School of Medical Research, The Australian National University, PO Box 334, Canberra, ACT 2601, Australia
Correspondence
Mario Lobigs
Mario.Lobigs{at}anu.edu.au
We have investigated the contribution of the interferon (IFN)-
/
system, IFN-
and nitric oxide to recovery from infection with Murray Valley encephalitis virus, using a mouse model for flaviviral encephalitis where a small dose of virus was administered to 6-week-old wild-type and gene knockout animals by the intravenous route. We show that a defect in the IFN-
/
responses results in uncontrolled extraneural virus growth, rapid virus entry into the brain and 100 % mortality. In contrast, mice deficient in IFN-
or nitric oxide production display an only marginally increased susceptibility to infection with the neurotropic virus.
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