The world
The jungle-trekking Covid vaccinators helping to protect remote Indian villages.
With fears of a new wave of Covid hitting India, pressure is on to vaccinate more of the population.
Health experts say that until the virus is contained in countries like India, the pandemic won’t be over for the world. But there are some glimmers of hope.
BBC South Asia correspondent Rajini Vaidyanathan reports from one remote district in the north-eastern state of Arunachal Pradesh, which has managed to vaccinate the vast majority of adults - against all odds.