TORONTO (AP) — Officials in Canada’s most populous province have confirmed the first two known Canadian cases of a more contagious variant of COVID-19 that was first identified in the United Kingdom.

The province’s associate chief medical officer says that the cases are a couple from Durham Region, just east of Toronto, with no known travel history, exposure or high-risk contacts.

The new variant is believed to spread more easily and faster than the original version of the disease but is not believed to be more deadly.