RT Journal Article SR Electronic T1 What to know about Omicron XBB.1.5 JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E127 OP E128 DO 10.1503/cmaj.1096034 VO 195 IS 3 A1 Lauren Vogel YR 2023 UL http://www.cmaj.ca/content/195/3/E127.abstract