Janssen Ad26COVS1

A Multi-Centre, Randomized, Double Blind, Phase 2b Trial to Evaluate the Safety and Immunogenicity of Janssen Ad26COVS1 and Novavax NVX-CoV2373 COVID-19 vaccines for Homologous and Heterologous Boosting in Adolescents and Adults Aged 12 to 64 Years with and without HIV infection in 3 African Countries (Kenya, Democratic Republic of Congo, and Rwanda).

Evaluating Safety and Immune Response of Janssen, Moderna, Pfizer/BNT, and Novavax COVID-19 Vaccines for Same and Mixed Boosters in Adolescents and Adults Aged 12-64 With and Without HIV in Kenya, DRC, and Rwanda