What you need to know about Johnson & Johnson's approved single-dose vaccine

What you need to know about Johnson & Johnson's approved single-dose vaccine

While Health Canada approved COVID vaccines from Pfizer, Moderna and AstraZeneca based on the clinical trial findings of their vaccines being given in two doses, about one month apart, NACI said that "real world effectiveness are showing sustained high levels of protection" after just the first dose.

Ontario Health Minister Christine Elliott recently stated the province may be able to move up its vaccine timeline so all adults receive at least a first dose before the end of the summer, though she was not yet ready to firmly commit.

"We have reasons to be optimistic."

The federal government has long said its goal is to have enough vaccines for all Canadians by September.

The news from Pfizer that it will speed up deliveries comes after a marked delay in the national vaccination effort in January and February when the company made a decision to upgrade production lines at a major factory in Belgium. He talked about the vaccines from Pfizer, Moderna, Johnson & Johnson and the one awaiting approval from AstraZeneca.

The vaccine can be stored and transported at refrigerated temperatures for at least three months, making it easier for distribution across the country.

That's good news in this country and beyond, said Dr. Zain Chagla, a Hamilton, Ont. -based infectious disease specialist and professor at McMaster University. Those are to be delivered by the end of September.

The Janssen vaccine joins the following other authorized products for use across Canada: Pfizer-BioNTech, Moderna, and AstraZeneca. The regulator includes a fifth on its list of authorized shots: Covishield, which is a separate brand name for doses of the Oxford-AstraZeneca vaccine produced at the Serum Institute of India. Each of these requires two shots.

However, he added it's possible disruptions to the vaccine supply chain may still occur.

Tsunami warning issued after 7.2-magnitude quake strikes off New Zealand
Cars lined up at Haumoana School in Hawke's Bay, where people from coastal communities headed for higher ground. Listen to local Civil Defence authorities and follow any instructions regarding evacuation of your area.

The U.S. Conference of Catholic Bishops said in a statement the Johnson & Johnson vaccine uses abortion-derived cell lines, raising "moral concerns".

The spiritual leader of Northeastern Pennsylvania's Roman Catholic community has urged the faithful to receive any COVID-19 vaccine that is clinically safe and effective.

In January, Johnson & Johnson announced its vaccine was 66 per cent effective in preventing COVID-19 against multiple variants in a global trial involving almost 44,000 people.

"It's important to clarify that that was not the mayor's intent, and that was not the mayor's comments", White House senior adviser on Covid-19 Andy Slavitt said in response to a question from CNN's Arlette Saenz. "We know that all of the vaccines will protect you".

After the first doses of Pfizer-BioNTech's vaccine arrived before the end of 2020, the national vaccination effort slowed sharply in January while Pfizer upgraded production lines at a major factory in Belgium.

Bahrain was the first jurisdiction to approve J&J's vaccine on February 25, followed by the USA two days later.

With a population of nearly 38 million, Canada now expects 36.5 million doses of previously approved vaccines to be delivered by the end of June.

"You can way more easily get a vaccine like this into primary care clinics and pharmacies, which means that you can distribute it so much more broadly", said Bogoch, who is also a member of Ontario's vaccine task force.

There remains only one more vaccine now under review by Health Canada, called Novavax, and Sharma said a decision on whether it can be used in Canada is weeks or maybe even months away.

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