The vast, glitzy gaming halls of Macao are open, but thousands of baccarat tables are empty. The world's biggest gambling hub has barred entry to most travelers and hotels are being used to isolate new arrivals in case they have been infected by coronavirus.

In Las Vegas, the casinos have been forced to close in order to prevent the spread of the disease. The same has happened in Australia, South Korea, the Philippines and Cambodia.

The global business of gambling — which thrives on air travel and large groups of people in close proximity — is one of the hardest hit as the world goes into lockdown.