“It’s been really really busy,” said Bawa. All doses will be administered by Saturday. On Tuesday, Ontario said it will stop giving out first doses of the Oxford-AstraZeneca vaccine for now, due to what it said is a one in 60,000 risk of a rare blood-clotting syndrome called vaccine-induced immune thrombotic thrombocytopenia, or VITT. That province’s top doctor said the decision was made out of “an abundance of caution.” Dr. David Williams stressed that those who have received AstraZeneca so far made the right decision, based on the advice available at the time. Eight people in Ontario have developed the rare blood clot. One case has been reported in B.C. — the woman in her 40s was treated and is being monitored.