Researchers from Université de Montréal, Dr Daniel Kaufmann and Dr Andres Finzi, in collaboration with researchers from New York University, are confirming the presence of a long-lasting immune response to the novel coronavirus SARS-CoV-2, in a pre-print publication.
Canadian Blood Services and the CITF’s collaborative nine-province SARS-CoV-2 seroprevalence study for October thru November suggests that 1.5 per cent of healthy Canadians had been exposed to SARS-CoV-2. The highest levels were recorded in Western Canada but mass national vaccination remains only route to achieving herd immunity.
Preliminary, non-peer reviewed results suggest that in phase 1 of a study on healthcare workers led by Dr. Nicola Cherry at the University of Alberta, rates of infection were higher in physicians than in other HCWs and higher in Quebec physicians than among physicians in Alberta.