Singapore airport prepares for sub-zero vaccine transport

These carts, recently acquired by logistics firm dnata, are known as cool dollies and part of a government-led plan to leverage the city-state's position as an air cargo hub and ensure the distribution of COVID-19 vaccines around the region.

Singapore expects the first shots of Pfizer-BioNTech's coronavirus vaccine to arrive this month. It was the first country in Asia to approve the vaccine.