Simian immunodeficiency virus replicates to high levels in naturally infected African green monkeys without inducing immunologic or neurologic disease.

Immunologic or Neurologic Disease Green Monkeys without Inducing to High Levels in Naturally Infected African Simian Immunodeficiency Virus Replicates

Induction of AIDS by simian immunodeficiency virus from an African green monkey: species-specific variation in pathogenicity correlates with the extent of in vivo replication.

Previous studies suggested that simian immunodeficiency viruses isolated from African green monkeys (SIVagm) are relatively nonpathogenic. The report describes the isolation and biologic and molecular characterization of a pathogenic SIVagm strain derived from a naturally infected African green monkey. This virus induced an AIDS-like syndrome characterized by early viremia, frequent thrombocyto...

Development of vivo of genetic variability of simian immunodeficiency virus.

Rapid development of genetic variability may contribute to the pathogenicity of lentiviruses as it may allow escape from immune surveillance and/or from suppression of virus replication. Although apathogenic in African green monkeys, simian immunodeficiency virus isolated from African green monkeys is shown to display extensive genetic variability and defectiveness in the V1- and V2-like variab...

Wide range of viral load in healthy african green monkeys naturally infected with simian immunodeficiency virus.

The distribution and levels of simian immunodeficiency virus (SIV) in tissues and plasma were assessed in naturally infected African green monkeys (AGM) of the vervet subspecies (Chlorocebus pygerythrus) by limiting-dilution coculture, quantitative PCR for viral DNA and RNA, and in situ hybridization for SIV expression in tissues. A wide range of SIV RNA levels in plasma was observed among thes...

Regulatory genes of simian immunodeficiency viruses from west African green monkeys (Cercopithecus aethiops sabaeus).

The high seroprevalence of simian immunodeficiency viruses (SIVs) in African green monkeys (AGMs) without immunological defects in their natural hosts has prompted consideration of SIV-infected AGMs as a model of apathogenic SIV infection. Study of the molecular mechanisms of SIVagm asymptomatic infection could thus provide clues for understanding the pathogenesis of human immunodeficiency viru...