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. 1972 Jun;5(6):957–960. doi: 10.1128/iai.5.6.957-960.1972

Respiratory Diseases in Cyclophosphamide-Treated Mice II. Decreased Virulence of PR8 Influenza Virus

S H Singer 1, P Noguchi 1, R L Kirschstein 1
PMCID: PMC422471  PMID: 4635505

Abstract

Mice infected intranasally with the PR8 strain of influenza virus were treated with cyclophosphamide, a potent immunologic suppressor. During the first week of infection, mortality in the unmodified influenza infection averaged 65%, whereas in those animals also treated with cyclophosphamide it averaged 22.5%. After the first week, the mortality rate in the infected cyclophosphamide-treated animals rose to that seen during the first week in the animals only infected. This decreased mortality in the first week was found despite the fact that the cyclophosphamide-treated and infected animals had higher virus titers which persisted longer, decreased circulating antibody, and a decreased interferon response. This delayed mortality appeared to be related to the finding of decreased cellular infiltration in the lungs of infected cyclophosphamide-treated animals.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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