Ab Schaap

Keppel Street
London, ENG, United Kingdom

Last Updated: 09/26/2026

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Found 63 publications

Development and validation of a machine learning model for community-based tuberculosis screening among persons aged ≥ 15 years in South Africa and Zambia.

Development and validation of a machine learning model for community-based tuberculosis screening among persons aged ≥ 15 years in South Africa and Zambia.

Journal: medRxiv : the preprint server for health sciences

Published: April 10, 2026

Development and validation of a machine learning model for community-based tuberculosis screening among persons aged ≥ 15 years in South Africa and Zambia.

Development and validation of a machine learning model for community-based tuberculosis screening among persons aged ≥ 15 years in South Africa and Zambia.

Journal: medRxiv : the preprint server for health sciences

Published: April 10, 2026

Migration and its impact on universal HIV testing and treatment in the HPTN 071 (PopART) study communities.

Migration and its impact on universal HIV testing and treatment in the HPTN 071 (PopART) study communities.

Journal: PLOS global public health

Published: September 25, 2025

Knowledge of HIV status among men aged 20-35 years in Lusaka, Zambia: Findings from a pilot time location sampling survey in the "Yaba Guy Che" (for the guys) study.

Knowledge of HIV status among men aged 20-35 years in Lusaka, Zambia: Findings from a pilot time location sampling survey in the "Yaba Guy Che" (for the guys) study.

Journal: Tropical medicine & international health : TM & IH

Published: May 24, 2025

Co-designing Healthcare Interventions with Users: A Discrete Choice Experiment to Understand Young People's Preferences for Sexual and Reproductive Health Services in Lusaka, Zambia.

Co-designing Healthcare Interventions with Users: A Discrete Choice Experiment to Understand Young People's Preferences for Sexual and Reproductive Health Services in Lusaka, Zambia.

Journal: The patient

Published: March 09, 2025

Clinical outcomes of participants of a TB prevalence survey with an abnormal chest X-ray but no evidence of TB disease after a median follow-up of 9 months in Zambia and South Africa.

Clinical outcomes of participants of a TB prevalence survey with an abnormal chest X-ray but no evidence of TB disease after a median follow-up of 9 months in Zambia and South Africa.

Journal: PLOS global public health

Published: July 09, 2024

Unmet need for contraceptives and unintended pregnancies among adolescent girls and young women aged 15 to 24 in Zambia: insights from the Yathu Yathu trial.

Unmet need for contraceptives and unintended pregnancies among adolescent girls and young women aged 15 to 24 in Zambia: insights from the Yathu Yathu trial.

Journal: Reproductive health

Published: July 08, 2024

Comparing patterns of recent and remote Mycobacterium tuberculosis infection determined using the QuantiFERON-TB Gold Plus assay in a high TB burden setting.

Comparing patterns of recent and remote Mycobacterium tuberculosis infection determined using the QuantiFERON-TB Gold Plus assay in a high TB burden setting.

Journal: PLOS global public health

Published: December 12, 2023

Self-reported uptake of STI testing services among adolescents and young people aged 15-24 years: Findings from the Yathu Yathu cluster randomized trial in Lusaka, Zambia.

Self-reported uptake of STI testing services among adolescents and young people aged 15-24 years: Findings from the Yathu Yathu cluster randomized trial in Lusaka, Zambia.

Journal: PLOS global public health

Published: September 20, 2023

Prevalence of mental distress in adults with and without a history of tuberculosis in an urban Zambian community.

Prevalence of mental distress in adults with and without a history of tuberculosis in an urban Zambian community.

Journal: Global mental health (Cambridge, England)

Published: June 22, 2023

Incidence of self-reported tuberculosis treatment with community-wide universal testing and treatment for HIV and tuberculosis screening in Zambia and South Africa: A planned analysis of the HPTN 071 (PopART) cluster-randomised trial.

Incidence of self-reported tuberculosis treatment with community-wide universal testing and treatment for HIV and tuberculosis screening in Zambia and South Africa: A planned analysis of the HPTN 071 (PopART) cluster-randomised trial.

Journal: PLoS medicine

Published: April 16, 2023

Demographics of sources of HIV-1 transmission in Zambia: a molecular epidemiology analysis in the HPTN 071 PopART study.

Demographics of sources of HIV-1 transmission in Zambia: a molecular epidemiology analysis in the HPTN 071 PopART study.

Journal: The Lancet. Microbe

Published: April 11, 2023

Showing 1-12 of 63

Last Updated: 09/26/2026