Distinctive Genetic Features of HIV-1B in Trinidad
Author Information
Author(s): Collins-Fairclough Aneisha M., Charurat Manhattan, Nadai Yuka, Pando Maria, Avila Maria M., Blattner William A., Carr Jean K.
Primary Institution: University of Technology, Kingston, Jamaica
Hypothesis
What are the genetic properties of the env V1-C4 of HIV-1B soon after transmission to Trinidadian heterosexuals?
Conclusion
Distinctive genetic features characteristic of HIV-1B strains from Trinidad suggest the epidemic was established by a founder strain.
Supporting Evidence
- HIV-1B from Trinidad had significantly longer V2 loops and shorter V3 loops compared to other regions.
- 88% of Argentinian MSM and 74% of Trinidadians were infected by a single strain.
- Distinct genetic features correlate with neutralization resistance mutations.
Takeaway
This study found that HIV-1B in Trinidad has unique genetic traits that make it different from HIV-1B found in other parts of the world.
Methodology
Quasispecies sampling and phylogenetic analysis were performed on the env V1-C4 of HIV-1B strains from Trinidadian heterosexuals and Argentinian MSM.
Limitations
The study had a smaller sample size and fewer virus isolates from each patient compared to other studies.
Participant Demographics
19 Trinidadian heterosexuals and 8 Argentinian MSM, with samples collected soon after seroconversion.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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