17 May 2022 | 14:55 Asia/Singapore No cause for alarm over new Omicron sub-variants here: NUS Experts CNA Online, 17 May 2022The New Paper, 17 May 2022The Straits Times, 18 May 2022, The Big Story, pA4Suria News Online, 18 May 2022Tamil Murasu, 18 May 2022, p2