city's 21-day quarantine and what some are describing as post-traumatic stress because of it. >> in zero covid hong kong, pandemic protocols have paralyzed this once busy travel hub. the arrival process that used to take minutes now drags on for hours. mandatory testing at the airport. waiting hours for the results. the lucky ones test negative and spend up to 21 days in self-pay hotel quarantine. darrell chan is not one of the lucky ones. >> i had been boosted. didn't ever think that i would be, actually test positive on arrival. >> 13 hours after landing in hong kong, chan was in an ambulance. he tested positive for the omicron variant even without symptoms, his minimum hospital stay is nearly a month. do you worry about your mental health as these days turn into