Recombination in HIV: An Important Viral Evolutionary Strategy
1997
Recombination in HIV: An Important Viral Evolutionary Strategy
publication
Evidence: moderate
Author Information
Author(s): Donald S. Burke
Primary Institution: Walter Reed Army Institute of Research
Hypothesis
Recombination may be an important fitness search strategy in the ongoing evolution of HIV.
Conclusion
Recombination is a significant mechanism by which HIV evades drug or immune pressures.
Supporting Evidence
- HIV-1 strains with chimeric genomes have been discovered in nature.
- Recombination can generate multidrug-resistant strains in treated patients.
- Syncytium formation may facilitate multiple infections and enhance recombination.
- Recombination may lead to new strains with different epidemiologic properties.
- Recombination is a dominant feature of retroviral genetics in laboratory settings.
Takeaway
HIV can mix its genes when two different strains infect the same cell, which helps it adapt and survive better.
Limitations
The exact mechanisms of recombination and the efficiency of retroviral recombination are not fully understood.
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