Maan Alhmidi People walk along a street in Montreal, Saturday, July 31, 2021. A new poll suggests fewer Canadians believe that the worst of COVID-19 pandemic has not passed as concerns rise about a fourth wave of infections driven by the spread of the highly-contagious Delta variant. THE CANADIAN PRESS/Graham Hughes August 04, 2021 - 1:00 AM OTTAWA - A new poll suggests more Canadians believe the worst of the COVID-19 pandemic has not passed as concerns rise about a fourth wave of infections driven by the spread of the highly contagious Delta variant. Fifty-four per cent of respondents to an online survey by Leger and the Association for Canadian Studies say the worst of the COVID-19 crisis is already over, compared with 63 per cent who believed so in a survey last month.