There is no pre-exposure treatment (e.g., Malaria), but WHO prequalified efficient vaccines for COVID-9.

Ensuring widespread global access to COVID-19 vaccines is necessary to prevent cases and deaths and contribute to global population immunity. Despite efforts to address vaccine access, most notably through the creation of COVAX, which aims to support the development and delivery of COVID-19 vaccines with a particular focus on assisting low- and middle-income countries, significant disparities remain.