COVID-19 cases are on the rise again in Canada, and the blame lies with the two rapidly spreading Omicron sub-variants, also known as BA.4 and BA.5 variants.
First detected in South Africa in April this year, its ability to spread more rapidly than other circulating variants, primarily BA.2, has led scientists to predict its prevalence as the dominant variant in the coming months.
Canadian researchers examining the threat from emerging strains of COVID-19 predicted that Omicron BA.5 would account for nearly 70 percent of cases by Canada Day. the latest data from the Public Health Agency of Canadadating back to June 12, shows that BA.5 accounted for 20.4 percent of COVID-19 cases.
