OTTAWA - Prime Minister Justin Trudeau spoke to Pfizer CEO Albert Bourla by phone Thursday, the same day the company informed Canada delays to its shipments of COVID-19 vaccines are going to be even worse than previously thought.

Maj.-Gen. Dany Fortin, the military commander now overseeing the vaccine logistics for the Public Health Agency of Canada, said last week a factory expansion at Pfizer's Belgium plant was going to slow production, cutting Canada's deliveries over four weeks in half.

In exchange, Pfizer expects to be able to ship hundreds of millions more doses worldwide over the rest of 2021.

Tuesday, Fortin said Canada would receive 80 per cent of the previously expected doses this week, nothing at all next week, and about half the promised deliveries in the first two weeks of February.

Thursday, he said the doses delivered in the first week of February will only be 79,000, one one-fifth of what was once expected. Fortin doesn't know yet what will come the week after, but overall, Canada's doses over three weeks are going to be just one-third of what had been planned.

Trudeau has been under pressure to call Bourla, as the delayed doses force provinces to cancel vaccination appointments and reconsider timing for second doses.

Fortin said some provinces may be hit even harder than others because of limits on the way the Pfizer doses can be split up for shipping. The vaccine is delicate and must be kept ultra frozen until shortly before injecting it. The company packs and ships specialized coolers, with GPS thermal trackers, directly to provincial vaccine sites.

Ontario Premier Doug Ford said earlier this week he doesn't blame the federal government for the dose delays but wanted Trudeau to do more to push back about it.

“If I was in (Trudeau's) shoes ... I'd be on that phone call every single day. I'd be up that guy's yin-yang so far with a firecracker he wouldn't know what hit him,” he said of Pfizer's executives.

Trudeau informed Ford and other premiers of the call with Bourla during a regular teleconference to discuss the COVID-19 pandemic. Until Thursday, all calls between the federal cabinet and Pfizer had been handled by Procurement Minister Anita Anand.

Ford also spoke to Pfizer Canada CEO Cole Pinnow Wednesday.

Trudeau didn't suggest the call with Bourla made any difference to the delays, and noted Canada is not the only country affected.

Europe, which on the weekend thought its delayed doses would only be for one week after European Commission President Ursula von der Leyen spoke to Bourla, now seems poised to be affected longer. Italy is so angry it is threatening to sue the U.S.-based drugmaker for the delays.

Mexico said this week it is only getting half its expected shipment this week and nothing at all for the next three weeks. Saudi Arabia and Bahrain also reported delays getting doses. Pfizer Canada spokeswoman Christina Antoniou said more countries were affected but wouldn't say which ones.

Fortin said Pfizer has promised to deliver four million doses to Canada by the end of March and that is not going to change with the delay. With the current known delivery schedule, the company will have to ship more than 3.1 million doses over 7 1/2 weeks to meet that commitment.

Deliveries from Moderna, the other company that has a COVID-19 vaccine approved for use in Canada, are not affected. Canada has received about 176,000 doses from Moderna to date, with deliveries arriving every three weeks.

Moderna has promised two million doses by the end of March.

Both vaccines require first doses and then boosters several weeks later for full effectiveness. Together Pfizer and Moderna intend to ship 20 million doses to Canada in the spring, and 46 million between July and September. With no other vaccines approved, that means Canada will get enough doses to vaccinate the entire population with two doses by the end of September.

This report by The Canadian Press was first published Jan. 21, 2021.