Canada now has 4 different vaccines to help us fight COVID-19, BioNtech/Pfizer, Moderna, AstraZeneca and Johnson and Johnson. While that’s a (very) good thing, this has led to some inevitable questions about which vaccine is “better” and whether people should wait for one or the other. An email from a friend who questioned the AstraZeneca vaccine inspired me to write this.
First, to re-iterate once again, while is true that all of these vaccines were developed at a rapid pace, the reality is that they all have been thoroughly tested. The shortcuts that were made were made in the bureaucracy, not the human trials. You can read my thoughts on that here, or see my colleague Dr. Greg Rose explain it better here.
There will likely never, ever be a vaccine (of any kind) that is 100 per cent safe (ever), but overall these vaccines are extremely safe for the general population.
The difficult part in sorting out information about the COVID vaccines is two fold. First, there is a whole lot of information that comes out, almost on a daily basis. It’s hard for not just physicians to keep track of it all, but also members of the general public. Second, some of the information that is released is extremely premature, without a full analysis being done. First impressions being lasting impressions, this often times creates an incorrect perception of a vaccine, that is hard to refute later on.
For example, the BioNtech/Pfizer vaccine was initially plagued by concerns that it caused Bell’s palsy (based on a report that 4 people got it after taking the vaccine) and that death was a side effect (based on report in Norway of 33 people over the age of 80 dying after taking the vaccine). It wasn’t until later that a through review showed that the Bell’s palsy issue was actually the same or less than the background rate. Essentially, you would expect about 12 people a year in the vaccine group to get Bell’s palsy anyway, regardless of whether they got the vaccine or not, so the fact that 4 got it didn’t mean it was linked to the vaccine, just that they were going to get it anyway. As for the 33 deaths, turns out that was in keeping with Norways normal death rate for their population of over 80 year olds, so again, not related to the vaccine.
Think of it this way. The most common time to get a heart attack is actually three hours after you wake up. Does this mean eating breakfast causes a heart attack? Of course not. Just because those two things happen close together, doesn’t mean that one caused the other. In statistics this is referred to as “correlation does not imply causation.” Sadly, there is rather a lot of correlation that is brought up about all of these vaccines, and the assumption is made that they are causing problems.
It was initially claimed the Moderna vaccine had more side effects than the BioNtech/Pfizer one. But it was only after studying it more that people realized that these aren’t really side effects, but proof that the vaccine is working. Your second shot of the Moderna vaccine made your immune system mount a response to what it viewed as a foreign body. Thus the muscle aches, fever and headaches that went along with it.
Now most recently there is some sub-optimal information circulating around the AstraZeneca vaccine. First, there was concern that they would not work against certain strains of COVID19, particularly the South African strain. Second is concern about blood clots.
The South African strain issue was particularly overblown. “Only 10% effective” screamed out some headlines. South Africa even stopped using this vaccine as a result. The full story is somewhat different.
Turns out the study that suggested AstraZeneca wouldn’t work against the SouthAfrica variant was very small (2,000 people), and not well done. Further more, what really matters, is preventing deaths, hospitalizations and severe disease and AstraZeneca works for this with the South African strain. Perhaps you may get a mild case of COVID19 (cough, fever, mild muscle aches for a couple of days). But the point of the vaccine is prevention of severe cases and deaths.
Similarly, the blood clot issue again appears to be one of correlation, not causation. The background rate of blood clots in the population would explain the ones found in Europe. Health Canada and Thrombosis Canada is not worried, and you shouldn’t worry either.
So back to the question at hand. Which vaccine should you get? My personal feeling is the J&J one would be the best simply because, logistically it’s much easier. Get one shot and it’s done. The problem with that one is that we have an effete Prime Minister who’s totally botched vaccine procurement for Canadians. There’s a reason #trudeauvaccinefailure is on twitter. Last I checked we are 61st in the world for procurement of vaccines (and for a G-7 country, that’s just embarrassing).
While happily announcing the approval of the J&J vaccine, Trudeau and the Liberals neglected to emphasize the fine print. Namely that the vaccine would likely not start to arrive until the end of April or early May, and that would only be in small amounts. The bulk of this vaccine won’t be in Canada until September.
Of course, right on queue, a few days after boasting about J&J, it was announced there would be production delays. Why the media isn’t talking about the outright incompetence of Trudeau and his government in protecting Canadian lives is beyond me.
Therefore, the best thing you can do is get the first vaccine that you are offered. When you get notified to get your shot, don’t ask which one, just get it. For what matters the most (keeping you out of hospital or dying from COVID19), they all work roughly the same.
I urge you all to do your part, protect yourself, protect others, and let’s get ourselves out of this pandemic, and back to a normal life.
A Great Cause.
As an addendum I would like to encourage all of my readers to consider buying some merchandise from Conquer Covid 19. This all volunteer group did yeoman’s work providing PPE to physicians, health care workers and others in need. Last year they raised $2.4 million and donated around 3 million (!) pieces of PPE.
This year they are selling their extremely boring merchandise (check Ryan Reynolds take on it here) and proceeds will go to LTCfrontline foods, providing hot meals to those workers who are struggling in long term care homes and Call Auntie, an organization that helps Indigenous people navigate issues around COVID19.
Please click here and donate what you can.