Coronavirus: untraceable Delta variant case is 'strange', says Hong Kong health chief, as expert suggests source may have 'slipped through cracks' after quarantine | South China Morning Post

Hong Kong's health minister has called an untraceable Delta coronavirus variant case uncovered the day before "strange", while one expert has suggested the source was likely to be someone infected during quarantine who "slipped through the cracks" and made it into the community. The preliminary-positive case, reported on Sunday, involved a 23-year-old woman with a high viral load who developed symptoms on Tuesday but did not submit samples until Friday. Secretary for Food and Health Sophia Chan Siu-chee urged the public not to let their guard down amid the discovery of both Omicron and Delta variants in the community. "Although…