WHO's 'Vaccine Explained' series features illustrated articles on vaccine development and distribution. Learn more about vaccines from the earliest of research stages to their rollout in countries.
How do vaccines work?
How are vaccines developed?
Manufacturing, safety and quality control of vaccines
The different types of COVID-19 vaccines
Access and allocation: how will there be fair and equitable allocation of limited supplies?
Country readiness for COVID-19 vaccines
The effects of virus variants on COVID-19 vaccines
Safety of COVID-19 Vaccines
Getting the COVID-19 Vaccine
Side Effects of COVID-19 Vaccines
How to talk about vaccines
Vaccine efficacy, effectiveness and protection