Intensifying global vaccination is the safest way to contain the spread of COVID-19. However, no less important is human behaviour to follow health protocols. It plays a key role in shaping the course of coronavirus at a time of growing disparities in access to a vaccine. The divide between the haves and have-nots in receiving inoculations could not have been starker. A huge gap persists between people who have received shots in rich and poor countries. Out of three billion
