Publications by authors named "O Keiser"

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Oral PrEP continuation rates among key populations in Nigeria: a retrospective cohort study of a large-scale HIV prevention programme.
Kene David Nwosu, Abiye Kalaiwo, Wingston Ng'ambi, Omosalewa Oyelaran, Paul Umoh, Olivia Keiser

BMJ Glob Health· December 2025

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Overview and evaluation of a nationwide hospital-based surveillance system for influenza and COVID-19 in Switzerland (CH-SUR): 2018-2023.
Jonathan A Sobel, Marie-Céline Zanella, Rebecca Grant, Camille B Valera, Maria Suveges, Olivia Keiser

Swiss Med Wkly· November 2025

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Targeted approaches for acute HIV infection diagnosis in rural Eswatini.
Iza Ciglenecki, Bernhard Kerschberger, Esther Mukooza, Skinner Lekelem, Nombuso Ntshalintshali, Olivia Keiser

Int J STD AIDS· September 2025

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Bottleneck Analysis of Maternal, Newborn and Child Health Services in Underserved Areas of Kwale County, Kenya.
Fatihiyya Wangara, Janne Estill, Hillary Kipruto, Caroline Perrin, Juma Ngudo, Olivia Keiser

Health Serv Insights· September 2025

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Low sensitivity of the fourth-generation antigen/antibody HIV rapid diagnostic test Determine™ HIV Early Detect for detection of acute HIV infection at the point of care in rural Eswatini: a diagnostic accuracy study.
Iza Ciglenecki, Nombuso Ntshalintshali, Esther Mukooza, Skinner Lekelem, Mpumelelo Mavimbela, Olivia Keiser

J Int AIDS Soc· July 2025

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