Twenty-four families living in 14 districts across Hong Kong have become the test cases for wearing electronic tracking wristbands during quarantine at home after returning from Hubei province, the epicentre of the deadly coronavirus outbreak in mainland China. Four families lived in Sai Kung, including Tseung Kwan O, while three cases each were recorded in Sha Tin, Tuen Mun and Yuen Long. The names of the residential buildings concerned were posted on the Department of Health’s website, without the floor or flat numbers. The government said earlier that through such a move, it hoped to avoid stigmatisation and reassure the public that the cases were low risk. Only four districts among the city’s 18 were not on the list including Hong Kong Island's Southern, Eastern and Wan Chai districts, as well as the Islands district. Quarantine cases are living in both private and public housing, including luxury properties on estates such as Oceanaire in Ma On Shan and Kingswood Villas in Tin Shui Wai. There is also one case living in an industrial building in Kwun Tong and another inside the residential lodge at the University of Science and Technology, named Li Dak Sum Yip Yio Chin Kenneth Li Conference Lodge. With the new measure rolled out, Hong Kong residents who travelled to Hubei over the previous 14 days will be ordered to stay at home and wear electronic wristbands for two weeks. Teams will carry out home visits and check users’ health, including their temperature. Coronavirus ‘could spread widely through Hong Kong’ as three new cases confirmed All 24 cases will finish their quarantine period by February 13, and during their time at home, they have to carry the tracking device at all times, connected to a smartphone which will alert the authorities if they try to run away. Police would help track absconders and escort them home if they are found in the neighbourhood or list them as a wanted person with an infectious disease. Director of Health Dr Constance Chan Hon-yee said on Monday such a measure targeted people with a low risk of infection. She urged residents living in the same block and the wider public not to panic, adding that the department would coordinate with the building management.