Amidst a surging second wave of Covid-19 the centre has announced a “liberalised and accelerated” Phase 3 strategy for vaccinations against the coronavirus under which all adults will be eligible for inoculations from May 1. Here’s everything you need to know about the much-awaited phase 3 strategies for the world’s largest COVID-19 vaccine inoculation drive.

Clearly, the government has shifted its focus from vaccinating the entire population to achieving ‘herd immunity’ as it aims, in the first instance, to vaccinate 250-300 million ‘priority’ populace in six months after a vaccine is available. If the earlier presumption was that all would be given the shots, what does this mean? Is it possible? And, what are the challenges? Let’s look into it in detail.