Characteristics of the omicron XBB subvariant wave in Singapore. Issue 10384 (15th April 2023) - Goh, Alvin Xie Cheng; Chae, Sae-Rom; Chiew, Calvin J; Tang, Nicole; Pang, Deanette; Lin, Cui; Tan, Kelvin Bryan; Lee, Vernon J; Ho, Zheng Jie Marc