It is a good question. I have looked at numerous websites but cannot find a definitive answer as to whether connecting passengers are exempt from the 14-day quarantine rule for visitors from states with high infection rates.
网上查了不少，也有老外问了类似的问题，按常识推测，只在机场停留转机不需要隔离，但没有直接和明确的说法，不知道有没有这方面了解的提供下信息，谢谢！