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Updated: Jun 15, 2026

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A Restriction Enzyme Based Cloning Method to Assess the In vitro Replication Capacity of HIV-1 Subtype C Gag-MJ4 Chimeric Viruses
Published on: August 31, 2014
[The origin and evolution of HIV]
1Department of Medicine, University of Alabama at Birmingham, USA.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|March 17, 2010
Summary
Human immunodeficiency virus type 1 (HIV-1) originated from simian immunodeficiency viruses (SIVs) in apes. Cross-species transmission events explain the diverse HIV-1 groups found in humans today.
Area of Science:
- Primatology
- Virology
- Evolutionary Biology
Context:
- The origin and evolution of Human Immunodeficiency Virus type 1 (HIV-1) are critical for understanding its genetic diversity.
- Tracing HIV-1's history involves examining cross-species transmissions from non-human primates to humans.
Purpose:
- To review current evidence on the cross-species transmission of simian immunodeficiency viruses (SIVs) from chimpanzees (SIVcpz) and gorillas (SIVgor) to humans.
- To elucidate the origins of different HIV-1 groups (M, N, O, P) and their establishment in human populations.
Summary:
- Four distinct cross-species transmission events of SIVcpz and SIVgor led to the emergence of HIV-1 groups M, N, O, and P.
- In vitro studies confirm that SIVcpz and SIVgor possess biological characteristics enabling persistent infection in humans, supporting their zoonotic origins.
Impact:
- This review consolidates evidence for the zoonotic origins of HIV-1, highlighting the importance of SIV cross-species transmission.
- Understanding these transmission pathways is vital for public health, viral evolution studies, and potential future interventions.
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