Because of concerns about rare thrombosis
Toronto-Ontario, Canada’s most populous province, announced on Tuesday that it would stop using the first dose of the Covid-19 vaccine developed by AstraZeneca due to concerns about its connection with rare cases of thrombosis.
Ontario’s chief medical officer in charge of health, Dr. David Williams, said that the decision was made for prevention because of the increase in blood clots related to the vaccine.
As it may be related to this type of blood clot, the use of AstraZeneca vaccine is restricted in certain European countries.
Williams said: “In the past few days, there has been an increase in cases.” “We are reviewing information to consider the use of AstraZeneca vaccine for a second or wider dose selection.”
In Canada, at least 12 cases of blood clots were diagnosed in more than 2 million doses and three women died.
Canadian Prime Minister Justin Trudeau and Ontario Prime Minister Doug Ford have received their first dose of AstraZeneca vaccine in recent weeks. Williams pointed out that the person who received the first AstraZeneca vaccine was “absolutely right.”
Dr. Andrew Morris, Professor of Infectious Diseases at the University of Toronto and Medical Director of the Health Network’s Antimicrobial Management Program at the University of Sinai, believes that Canada should no longer use AstraZeneca vaccine due to the increased supply of other vaccines in the country.
He commented: “This is the right thing to do.”
Morris pointed out that experts still don’t know how to treat people who have already received their first dose. Health officials are awaiting the results of a British clinical trial that will review the method of administration of a second dose of a different vaccine. This will allow people who receive the first dose of AstraZeneca vaccine to receive Pfizer or Moderna vaccines.
Alberta no longer takes the first dose of AstraZeneca vaccine simply because of a shortage of supplies.
Pfizer and Moderna will deliver enough vaccines for each Canadian to eventually receive both vaccines.
Trudeau said that about 50% of eligible adults in Canada received at least one dose of the COVID-19 vaccine. Most of them come from Pfizer and Moderna.
The Prime Minister commented that by the summer, Canada will have a sufficient number of vaccines so that every resident can get the first dose of vaccine, adding that by September, Canada will have enough doses so that all residents can get enough vaccines. Vaccination.