India is simultaneously battling the world’s fastest-growing surge of infections and carrying out one of the most logistically complex vaccination campaigns.
New Delhi has set a target of vaccinating 300 million of its more than 1.3 billion people by the fall.Some of those doses will be transported hundreds of miles—by truck, plane, scooter, boat and even on foot—before being injected into the arms of people living in small, remote villages.
Along the way, each dose must be tracked and kept chilled. The enormous challenge has become all the more urgent as infections have skyrocketed in recent weeks.