I'm in 'ground zero', as it were, and apart from the fact I don't believe single authority on any straight information anyway, my own interpretation of the lack of increased cases in Cambodia, Thailand, Vietnam .....Is temperature.

That 'ole corona don't like it too hot, and a cold day in winter is around 20 degrees C. (68 degrees in silly temperature numbers. lol)

It's only my interpretation, and could be complete bollocks of course.

I knew my semi recluse lifestyle would pay dividends! lolol