Discovery Bay International School must suspend classes as its 120 students have to complete a three-day quarantine, health authorities said. Both left Hong Kong on October 31 for Germany and returned to Hong Kong on November 6 on the same flight (CX2066) from Frankfurt. Their specimens collected upon arrival at Hong Kong International Airport tested negative. His wife teaches at Discovery Bay International School, and the two children also study there. She stayed at Empire Hotel Causeway Bay, as well as Gateway Hotel in Tsim Sha Tsui.