It is simple. Singapore has not been a mask country during Coronavirus time. They have never been a universal masking country. In fact, it has been much less than 50%. This is a video from March 22.
Key indicator on #COVID19 is active cases, the number of patients who are currently sick. In most countries, this is increasing fast. One country that is showing decrease is South Korea.
If all countries looked same, it would be great. Right? #Masks4All 1/18
Compare the curve. Korea and Italy. Similar population size, and vastly different trajectories so far.
Note also that the Italian axix is 10 times as high as the Korean.
By the way, the US looks even worse right now. 2/18