A vaccine could offer a cost-effective path to a post-HIV pandemic future. It could markedly reduce the number of new infections lessen the number of people requiring lifelong treatment.Over the past 20 years we have seen great progress in the HIV response; as of 2024 more than 30 million people were accessing antiretroviral treatment, accounting for more than 76 per cent of all those who need care around the world.In Kenya, more than 97 per cent of people living with HIV have been initiated on treatments that are able to extend their lives and prevent them from transmitting the virus…