The content originally appeared on: CNN Two years on, pilots at flagship airline Cathay Pacific are so exhausted and depressed from working under one of the world's strictest quarantine regimes that some are reaching a breaking point. Once known as a premier employer, the Hong Kong-based airline is now grappling with plummeting morale, a spike in resignations and mounting frustration as staff undergo arduous self-isolation measures, according to two Cathay pilots, who spoke with CNN Business on condition of anonymity […]