COVID-19 vaccine blood clots – the FDA and EMA are doing the right thing

COVID-19 vaccine blood clots

If you have been watching the COVID-19 vaccine roll-out, you know that blood clots have become a concern with the vaccines from JNJ (Johnson & Johnson-Janssen) and AstraZeneca. Shockingly, some pro-vaccine types are trying to dismiss these concerns by posting ridiculous memes that try to compare blood clots from these vaccines to ones from birth control pills or smoking.

Setting aside the fact that memes are for the intellectually and scientifically weak, such as anti-vaxxers, these memes are trying to compare apples to bowling balls. Furthermore, ignoring these potential links play right into the hands of the anti-vaccine crowd.

mbedIn my not-so-humble opinion, the US FDA, European Medicines Agency (EMA), and other health agencies across the world have done the right thing by “pausing,” or limiting the use of the vaccines from JNJ and AstraZeneca. Science has been doing the right thing with regards to the COVID-19 vaccine blood clots issue.

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Is the AstraZeneca COVID-19 vaccine linked to blood clots? EMA provides guidance

astrazeneca COVID-19 vaccine blood clots

I have previously written about whether thrombosis (formation of blood clots) is linked to the AstraZeneca COVID-19 vaccine – my conclusions were that they probably weren’t. However, governments and the European Medicines Agency (EMA) are starting to get me very concerned about an issue with this vaccine.

Recently, the government of Quebec recently decided that the AstraZeneca vaccine will only be used on individuals 55 years and older. Of course, this caused some parts of the anti-vaccine world to froth at the mouth claiming the vaccine isn’t safe.

Then, on 6 April 2021, the European Medicines Agency (EMA) is reporting a plausible link between the AstraZeneca vaccine and thrombotic events. I will discuss this in detail below.

I think that many of the adverse events that are claimed to be associated with any of the COVID-19 vaccines involve the post hoc ergo propter hoc fallacy, which states that because one event precedes another event, they must be linked. It is entirely possible that thrombosis occurs after vaccinations because of random chance rather than actual correlation (let alone causation). However, thrombosis that is temporally associated with the AstraZeneca vaccine may be troubling.

Because the AstraZeneca COVID-19 vaccine is one of the four main vaccines (along with those from Pfizer, Moderna, and JNJ) to be given in the USA, Canada, the EU, Australia, and New Zealand, I want to make sure that the potential of a causal link to blood clots are given a thorough analysis.

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