RT Journal Article SR Electronic T1 Correspondence on ‘COVID-19 vaccine efficacy in a rapidly changing landscape’ JF Journal of Investigative Medicine JO J Investig Med FD BMJ Publishing Group Ltd SP 1442 OP 1442 DO 10.1136/jim-2022-002587 VO 70 IS 6 A1 Rujittika Mungmunpuntipantip A1 Viroj Wiwanitkit YR 2022 UL http://hw-f5-jim.highwire.org/content/70/6/1442.abstract AB