Association between HPV-16 and HPV-18 viral loads and severity of cervical pre-invasive lesions in women with and without HIV in Botswana - Summary - MDSpire

Association between HPV-16 and HPV-18 viral loads and severity of cervical pre-invasive lesions in women with and without HIV in Botswana

  • By

  • Leabaneng Tawe

  • Pleasure Ramatlho

  • Siqi Zhang

  • Zackary Salem-Bango

  • Rebecca Ketlametswe

  • Daniel P. Morse

  • Doreen Ramogola-Masire

  • Erle S. Robertson

  • Giacomo M. Paganotti

  • Surbhi Grover

  • June 23, 2026

  • 0 min

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Objective:

To explore the correlation between HPV-16 and HPV-18 genotype viral loads and the severity of cervical lesions in pre-cervical cancer patients in Botswana.

Approach:
    Key Findings:
    • HPV-16 was detected in 33.94% and HPV-18 in 14.68% of the samples.
    • Higher cervical intraepithelial neoplasia (CIN) grade was associated with increased HPV-16 viral load.
    • HPV-18 exhibited a variable pattern, with the highest viral load observed in CIN II.
    • HPV-16 presence and elevated viral load were significant risk factors for CIN III.
    • HPV-18 presence and higher viral load were associated with increased risk for CIN II but not CIN III.
    • HIV status did not significantly impact the viral load of HPV-16 and HPV-18.
    Interpretation:

    Higher HPV-16 viral loads correlate with more severe cervical lesions, while HPV-18 is associated with CIN II. HIV status does not influence viral loads.

    Limitations:
    • The study is based on a relatively small sample size of 109 patients.
    • Findings need to be confirmed in larger studies.
    Conclusion:

    Higher HPV-16 viral loads are linked to more severe cervical lesions, while HPV-18 is associated with CIN II. Further research is needed.

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