The border measures are only one part of the government's response to the pandemic. Certainly based on our data, looking at positivity rates, we have been able to monitor importation risks, and all of this contributes to limiting risk to Canadians. So my answer would be, yes. Like everything else, they need improvement and continuous adjustment, but they have certainly been effective in contributing to slowing down importation risks to Canada.
On February 28th, 2022. See this statement in context.