Leveraging remnant viral load samples for SARS-CoV-2 antibody seroprevalence trends among PLHIV in Kenya, February 2021–October 2022: a cross-sectional surveillance survey

From March 2020 to November 2022, Kenya had seven COVID-19 waves with over 339,000 cases and nearly 5,700 deaths. Vaccination started in March 2021, and by October 2022, about a third of the population had at least one dose. Of Kenya’s 55 million people, 1.4 million live with HIV and most receive treatment. While people with HIV are not more likely to catch COVID-19, they may face worse outcomes. Data on COVID-19 among this group in Africa is limited, so we tracked antibody trends in HIV patients on treatment in Kenya during 2021–2022.