Let me start by mentioning that we have had experience over the last year and a bit in looking at testing at the border, looking at an extensive testing regime and shifting ourselves to mandatory random testing. This mandatory random testing is one of the key components that has allowed us to really focus on one aspect. We haven't had an opportunity to test everyone, but we can use a random sample based on an algorithm that was developed by the CBSA. It is based on travel history and the epidemiology of the country the traveller is coming from. That allows us an insight into the positivity rate of importation through travellers and into identifying any variant of concern. In the testing we do, any positive is 100% sequenced for genomic analysis. That's why we're able to identify things very early.
On April 5th, 2022. See this statement in context.