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Wednesday May 12, 2021

Editorial Cartoon by Graeme MacKay, The Hamilton Spectator – Wednesday May 12, 2021

What happens when people get two different COVID-19 vaccines?

As some experts continue to warn of very rare side effects associated with the AstraZeneca vaccine, Canadian health officials are now reviewing the research on mixing various COVID-19 shots.

May 6, 2020

A study of a “mismatched” vaccine regimen is underway in the U.K. — but some scientists say there’s reason to believe that administering two doses of different products could boost a person’s immune response beyond what can be achieved by giving the same shot twice.

The National Advisory Committee on Immunization (NACI) caused some confusion earlier this month when it said the viral vector shot from AstraZeneca is not the “preferred” product given its associated risk of vaccine-induced immune thrombotic thrombocytopenia (VITT) — a condition that causes blood clots. That warning came out after hundreds of thousands of Canadians had received the AstraZeneca vaccine already.

According to the Ontario Science Table, estimates of the frequency of VITT in individuals who have received the AstraZeneca vaccine now range from 1 case in 26,000 to 1 case in 127,000 doses administered.

The risk of developing this side effect, combined with an uncertain delivery schedule for future supply, has prompted some provinces to consider pausing AstraZeneca vaccinations altogether.

Researchers at Oxford University in the U.K. launched a study in early February to explore the possible benefits of alternating different COVID-19 vaccines. According to the lead scientists, the study is “looking for clues as to how to increase the breadth of protection against new virus strains.”

March 31, 2021

The study — otherwise known as the COVID-19 Heterologous Prime Boost study, or “Com-COV” — is collecting data to determine whether receiving two different types of vaccine generates an immune response at least equal to the response that follows receiving the same product twice. (A “heterologous” vaccination regimen is one that uses more than one product.)

Dr. Helen Fletcher is a professor of immunology at the London School of Hygiene and Tropical Medicine in the U.K. She said a “mismatched” vaccine program would deliver some practical benefits — vaccine delivery logistics would be greatly simplified — but there could be another good reason to pursue a mixed-dose regimen.

“I’m excited about the study because I think it’s likely that the immune response will be even better if you mix and match vaccines,” Fletcher said in an interview with CBC News.

Dr. Theresa Tam, Canada’s chief public health officer, said last week the current guidance is for AstraZeneca recipients to get a second dose of the same product, but NACI is now reviewing the Oxford research on mixing AstraZeneca with an mRNA shot.

“There will be further advice forthcoming on that second dose based on the evolving science. We should watch this space,” Tam said. 

Will Canada shorten the time between shots? Possibly. NACI said in early March that, given the limited vaccine supply, provinces and territories may want to wait up to 16 weeks between first and second doses to give more people at least some level of protection.

The provinces have since followed this guidance, with a few exceptions. For example, many long-term care home residents have been fully vaccinated on the timeline recommended by the vaccine makers. Pfizer calls for a second dose 21 days after the first, while Moderna stipulates the second shot should come 28 days later. (CBC) 

 

 

Tuesday May 11, 2021

Editorial Cartoon by Graeme MacKay, The Hamilton Spectator – Tuesday May 11, 2021

Poorer countries might not get vaccinated until 2023

High-income countries have purchased more than half of the Covid-19 vaccine supply to date, and low-income countries, just 9 percent, according to Duke University’s Global Health Innovation Center. This is why a country like the US is close to vaccinating half its population with one dose while the rate in a place like Guinea is less than 1 percent and not budging.

October 27, 2021

If these glaring inequities in vaccine access continue, it will take at least two years for the world’s poorest countries, which couldn’t afford to compete for early doses of vaccines, to immunize the majority of their populations. And we’re on track for a long period where people in rich countries enjoy the benefits and safety of being fully immunized, while people in poorer countries continue to get sick and die from the coronavirus. 

“That’s not just unconscionable, but it also is very much against the interests of high-income countries,” Georgetown global health law professor Lawrence Gostin told Vox in January. With the virus continuing to circulate, and variants picking up pace around the globe, outbreaks in the poorest countries will pose a threat to the world. 

It’s not an accident that many of the world’s first-approved Covid-19 vaccines — from companies like Pfizer, AstraZeneca, and Moderna — were developed and rolled out in high-income countries. As the pandemic took hold last year, wealthier nations — including the US, UK, and EU block — began making deals with the pharmaceutical companies that were developing Covid-19 vaccines, which also happened to be headquartered within their borders.

January 28, 2021

These bilateral deals involved governments essentially giving the companies billions of dollars to speed up research and development in exchange for priority access to vaccines, should they prove to be effective. But the deals also pushed poorer countries, which didn’t have the resources to pre-purchase millions of doses of vaccines that might not even get approved for market, further down the access line.

Rich countries could donate more doses to poorer countries — a move global health groups have been calling for for months and one that’s starting to happen in response to the crisis in India. 

Rich countries could also simply start investing more in helping poorer countries respond to the crisis. They could answer Covax’s call for more donor funds, for example. Or Omer called for something akin to PEPFAR, America’s global health program to combat AIDS around the world. Launched under George W. Bush in 2003, to date, it’s provided $90 billion toward fighting AIDS. (Vox) 

 

Wednesday April 6, 2016

Editorial Cartoon by Graeme MacKay, The Hamilton Spectator Ð Wednesday April 6, 2016 Panama Papers: Document leak exposes global corruption, secrets of the rich The financial secrets of heads of state, athletes, billionaires and drug lords have been exposed in the latest Ñ and biggest ever Ñ leak of records from an offshore tax haven. The leak includes 11.5 million confidential documents shedding light on the assets and murky fiscal dealings of everyone from the prime ministers of Iceland and Pakistan to soccer player Leo Messi, movie star Jackie Chan and associates of Russian President Vladimir Putin. The records, dating as far back as 1977, come from a little-known but highly influential Panama-based law firm called Mossack Fonseca, which has 500 staff working in 40-plus countries. The firm is one of the world's top creators of shell companies Ñ corporate structures that can be used to hide ownership of assets. German newspaper SŸddeutsche Zeitung obtained the files from a source and shared them with global media partners, including CBC News and the Toronto Star, through the Washington-based International Consortium of Investigative Journalists. CBC News will be exploring more of what's in the documents, including Canadian connections, in a series of stories this week. "These findings show how deeply ingrained harmful practices and criminality are in the offshore world," said Gabriel Zucman, an economist at the University of California at Berkeley and author of The Hidden Wealth of Nations: The Scourge of Tax Havens. Zucman, who was briefed on the media partners' investigation, said the release of the leaked documents should prompt governments to seek "concrete sanctions" against jurisdictions and institutions that peddle offshore secrecy. While offshore accounts are not in themselves illegal, the leaked records show they are often used to shield illicit dealings. In a written response to questions from the media consortium, Mossack Fonseca said it "do

Editorial Cartoon by Graeme MacKay, The Hamilton Spectator – Wednesday April 6, 2016

Panama Papers: Document leak exposes global corruption, secrets of the rich

The financial secrets of heads of state, athletes, billionaires and drug lords have been exposed in the latest — and biggest ever — leak of records from an offshore tax haven.

The leak includes 11.5 million confidential documents shedding light on the assets and murky fiscal dealings of everyone from the prime ministers of Iceland and Pakistan to soccer player Leo Messi, movie star Jackie Chan and associates of Russian President Vladimir Putin.

The records, dating as far back as 1977, come from a little-known but highly influential Panama-based law firm called Mossack Fonseca, which has 500 staff working in 40-plus countries. The firm is one of the world’s top creators of shell companies — corporate structures that can be used to hide ownership of assets.

German newspaper Süddeutsche Zeitung obtained the files from a source and shared them with global media partners, including CBC News and the Toronto Star, through the Washington-based International Consortium of Investigative Journalists.

CBC News will be exploring more of what’s in the documents, including Canadian connections, in a series of stories this week.

“These findings show how deeply ingrained harmful practices and criminality are in the offshore world,” said Gabriel Zucman, an economist at the University of California at Berkeley and author of The Hidden Wealth of Nations: The Scourge of Tax Havens.

Zucman, who was briefed on the media partners’ investigation, said the release of the leaked documents should prompt governments to seek “concrete sanctions” against jurisdictions and institutions that peddle offshore secrecy.

While offshore accounts are not in themselves illegal, the leaked records show they are often used to shield illicit dealings.

In a written response to questions from the media consortium, Mossack Fonseca said it “does not foster or promote illegal acts.”

“Your allegations that we provide shareholders with structures supposedly designed to hide the identity of the real owners are completely unsupported and false,” the firm said. (Source: CBC News)