143 – Efficacy of Bivalent Versus Monovalent COVID-19 Vaccines Among People With HIV, Ubuntu Trial, 2022-24
Background Prospective trials have not previously compared the efficacy of boosting with the ancestral/monovalent mRNA vaccine (WA-1) versus a bivalent ancestral plus BA.4/BA.5-targeted vaccine in African countries, with high HIV and SARS-CoV-2 seroprevalence. Methods The second phase of CoVPN 3008 (Ubuntu trial) was a double-blind randomized trial in 7 countries, among people with HIV (PWH)…