Pfizer and AstraZeneca prevent hospitalizations due to Delta variant in Britain – –

Pfizer to send five million doses of coronavirus vaccine to Canada ahead of schedule

OTTAWA – New study in England suggests even one dose of Pfizer-BioNTech and Oxford-AstraZeneca vaccines are extremely good at preventing people from ending up in the hospital if they get COVID-19 of the Delta variant of the virus that causes it.

The news is particularly welcome in Canada, where the focus on early doses means more than two-thirds of Canadians are now partially protected against COVID-19, but only about one in eight is fully immunized.

Delta, one of the variants first identified in India, turns out to be the most contagious of variants known so far, and Monday prompted UK Prime Minister Boris Johnson to push back plans to lift all public health restrictions next week.

A wave of Delta-related cases has tripled the COVID-19 UK infection rate over the past three weeks. The UK had seen the number of new cases drop to less than 30 for every million people by mid-May, from more than 1,000 in January. It is now back to over 100.

Last month, Public Health England said that a single dose of Pfizer or AstraZeneca was only about 33% effective in preventing symptomatic cases of COVID-19 after one dose, but after two doses, this increased to 88% for Pfizer and 60% for AstraZeneca.

On Monday, Public Health England said it had new data that showed the vaccines were very successful in keeping people from getting extremely sick.

The study, based on 14,000 people with confirmed cases of COVID-19 due to Delta variant between April 12 and June 4, found two doses of either vaccine to be over 90 percent effective in keeping people from going to hospital . There were a total of 166 hospitalizations in the group.

After one dose, Pfizer was 94 percent effective against hospitalization, and AstraZeneca’s vaccine was 71 percent effective.

Ontario infectious disease specialist Dr. Isaac Bogoch says the study is a beacon of hope at a time when “good news is scarce.”

Dr Gerald Evans, director of infectious diseases at Queen’s University School of Medicine, said many people still don’t understand that vaccines are still considered effective even if they do not fully prevent disease.

“If people’s goal is’ I never even want to COVID‘so the vaccine doesn’t look that good, ”he said. “But if, if they look ‘good, I could still get COVID but I’m not really going to get sick, ”so that’s an incredibly encouraging thing.

Evans said the Delta variant was spreading the fastest in the UK among people who had no vaccine.

Canada is moving quickly to second doses now, with 1.2 million people joining the fully vaccinated group in the past four days alone, and two million in the past 10 days. About 70 percent of injections now go to second doses, up from just about 38 percent a week ago.

Canada is also vaccinating faster than ever, averaging more than 10 doses per day per 10,000 Canadians over the past week. With more than 13 million doses expected in the next eight days, the supply is also faster than ever.

While each province has set its own immunization goals and plans for reopening, Dr. Theresa Tam, Chief Public Health Officer, has set an interim national goal of immunizing 75% of eligible Canadians with one dose and 20% with both doses, before most outdoor activities. restrictions can be lifted.

At current rates, Canada is expected to hit 75 percent with a dose target by the end of this week, and 20 percent with two in eight to ten days.

Tam warned, however, that with Delta’s additional infectivity, Canadians must continue to exercise caution and follow public health orders, especially between the first and second doses.

This report by The Canadian Press was first published on June 14, 2021.


Please enter your comment!
Please enter your name here