Among those affected by Germany's decision to halt the AstraZeneca vaccine's use in under 60-year-olds were tens of thousands of teachers, who had only recently been offered appointments for the shot.
Canada's promised spring supply of COVID-19 vaccines grew Tuesday with millions of additional doses now expected to arrive from three different suppliers before Canada Day.
"In Malaysia, we are starting to think about what will be allowed for people who have received two doses of the vaccine compared to those who have not received any vaccination".
The reason for this was due to concerns coming out of Europe that saw a very rare side effect of blood clots developing with low levels of platelets.
AstraZeneca said the European Medicines Agency (EMA) found in its review that there was no link between the vaccine and blood clotting, but further analysis was "deserved".
The move comes a day after provincial health officer Dr. Bonnie Henry announced a pause on use of the same vaccine for anyone under 55 on the advice of the National Advisory Committee on Immunization over concerns about rare blood clots.
For the first week of the new campaign, 35,000 GP practices have already ordered 1.4 million vaccine doses.
"The key to getting back to normal is for everyone to get vaccinated", he said.
"It's the protein at the end of the assembly line that gets seen by the immune system", he said. "But that probably reflects that there's a lot less use of Moderna at the moment in Europe".
"According to the current scientific knowledge, there is no evidence that would support restricting the use of this vaccine in any population", Cooke told reporters Wednesday.
Statistics from Brazil, which also uses the AstraZeneca vaccine, were not included.
Health authorities said 7 million doses of AstraZeneca vaccines it has procured through a contract with the pharmaceutical company will be delivered between May and June, adding that talks are under way to expedite the process.
Pending this decision, ministers said people who are due for their second jab can either choose to take it if cleared by their attending doctor, or they can opt to wait for the commission to make its recommendation.
The vaccine must be given in two doses, with the second being given eight to 12 weeks after the first shot.
"The 430 vaccination centers we have so far will be joined by 35,000 more after Easter, and that's no Aprilscherz (April Fool's joke)", said Adreas Gassen, head of the National Association of Statutory Health Insurance Physicians, on Thursday.
If given the chance, Russell said he'd get the AstraZeneca vaccine today.
"We just have to be patient", said Catherine Bussey, who left without an appointment.
And there's the trouble. An informal CTV News Edmonton poll on Twitter showed that, as of 4 p.m., out of over 1,800 respondents, over half would not get the AstraZeneca vaccine if it was offered to them right away.
Canada's rollout plan relies heavily on the use of AstraZeneca. By Monday, some 13.2 million people in the country had received at least one dose of vaccine, while almost 4 million had received both shots.
"It has to increase hesitancy, which is going to slow down acquisition of herd immunity", Russell said.
"I can't really get angry". It's efficacy wasn't as high, the third phase of the trial used incorrect dosing, it wasn't approved for use in those over age 65, and then it was. "Patient safety remains the company's highest priority".