30 December 2022 | 17:27 Asia/Singapore Tourists from China not a Covid-19 threat to S’pore’s population: Infectious disease expert The Straits Times Online, 30 December 2022The Business Times Online, 31 December 2022Tamil Murasu, 31 December 2022, p2CNA Online, 5 January 2023Suria News Online, 5 January 2023Warna 94.2FM, 5 January 2023