COVID-19: Abu Dhabi, Dubai top global ranking of cities for pandemic response
#6

I think hot weather helps. I remember mid east got 1 period above 50degree few days.

https://www.khaleejtimes.com/news/weathe...uae-summer

大多数病毒耐冷不耐热,于50~60℃、30分钟即可被灭活。热对病毒的灭活作用,主要是使病毒衣壳蛋白变性和病毒包膜的糖蛋白刺突发生变化,阻止病毒吸附于宿主细胞。热也能破坏病毒复制所需的酶类,使病毒不能脱壳。
由此可见,新型冠状病毒虽然对热敏感,但20℃还不足以“热死”新型冠状病毒,需要在56℃以上,持续30分钟以上才能有效灭活病毒。家庭中高温消毒的方法可使用开水煮沸或消毒柜、光波炉等电器进行高温消毒。

http://www.yuehangs.com/articles/gzbdch.html

Those 2 days had help kills or slow the spread in public places i think.
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