In Thailand, it's the all-important tourism sector that has jumped to the head of the COVID-19 vaccination line, with the country's most popular resort island embarking on a mass inoculation program two months ahead of the rest of the country.

The island of Phuket aims to deliver shots to at least 460,000 people — most of its population — as it gears up for July 1, when vaccinated overseas visitors will no longer be required to quarantine.

Phuket also has its own international airport and tourists would be able to roam the island freely without posing any coronavirus risk to the rest of Thailand's population.