@Derbygerbil it's just that Singapore is one of the few countries in the region with effective testing.
Indonesia has pisspoor testing and it's rampaging in Jakarta and killing many there but the numbers don't reflect it because there are so many crooks, incompetents and religious lunatics at the various helms.
We already knew that coronavirus spread very well in hot places as was proven by Islamic gatherings in Malaysia, Indonesia, India, etc., the problem for these countries, especially places with big tourism earnings is that the virus is not necessarily going to (a) spread and (b) kill many people across a warm country, but the spread of the virus with low lethality which is then brought back to ageing Europe where it rips through and kills hundreds of thousands of people.
The problem is that laissez faire attitudes in places like Indonesia (which is suffering badly economically but has a pisspoor 'lockdown') will mean it cannot be allowed to receive visitors from Western countries, and indeed responsible ordered countries like Singapore.
'Infections' don't mean that much at this point.