Fox, L; Miller, L. What is known about hybrid immunity to COVID-19? 2022 May 18, Document no.: INF220501 ESR. In: COVID-19 Rapid Evidence Reviews [Internet]. SK: SK COVID Evidence Support Team, c2022. 41 p. (CEST evidence search report). https://covid19evidencereviews.saskhealthauthority.ca/en/permalink/coviddoc480