“As seen in Chart 2, Canadians reporting two known or suspected COVID-19 infections (25.4%) were 1.7 times more likely to report prolonged symptoms than those reporting only one known or suspected infection (14.6%), and those with 3 or more infections (37.9%) 2.6 times more likely. ” https://www150.statcan.gc.ca/n1/pub/75-006-x/2023001/article/00015-eng.htm