There are estimated 10 million blind people in India, with a further 50 million suffering from some visual impairment
The US quit the council in 2018 under the previous president Donald Trump
Between 40,000 and 50,000 tonnes are exported across border to Pakistan, India and the Gulf states each year
The October shortfall was already the biggest in absolute terms for a single month since November 2018
Pakistan has administered at least 93.6 million doses so far