Prime Minister Justin Trudeau is suggesting that three-quarters of Canadians will need to be vaccinated against COVID-19 before the Canada-US border can be reopened. Trudeau acknowledges that discussions about the border are ongoing, but he’s tamping down any expectations that travel restrictions could be lifted soon.

Discretionary travel between Canada and the United States has been prohibited since March 2020, a restriction that will be extended into June before the end of the week.

Trudeau says Canada is still not out of the current third wave of COVID-19 and has much more work to do before it’s safe for travel to resume.

That’s in contrast with the US, where a blistering vaccination pace has prompted public health officials to lift face mask requirements for people who are fully vaccinated.

That has some US lawmakers urging the Biden administration to get serious about drafting a plan to allow travel to and from Canada to resume in time for the July 4 holiday.