Progression to AIDS in macaques is associated with changes in the replication, tropism, and cytopathic properties of the simian immunodeficiency virus variant population.

Abstract excerpt

Human immunodeficiency virus type 1 (HIV-1) typically evolves from a macrophage-tropic, noncytopathic virus at early asymptomatic stages of infection to a T-cell-tropic, cytopathic, and syncytia-inducing virus population as humans progress to AIDS. This suggests that changes in virus phenotype may influence disease. Because simian immunodeficiency virus (SIV) infection in macaques is a common model system for...

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