Covid vaccine is in the news a lot this last couple of days, the AZ version at least. The big question is does it or does it not cause blood clots in some people? Seems highly unlikely based on the current known data; rates (40 cases from >17M recipients) are even less than you'd expect normally in the population vaccinated so far (being older and many having medical factors associated with increased risk to Covid-19 etc.) In my experience, people have a big problem with the whole correlation - causation thing, we often prefer to see patterns rather than interpret the data correctly. With the numbers being currently presented you could also (validly) argue that the vaccine causes less blood clots in the population. When thinking about this post I looked for some data on the vaccine to show in a chart, the only relevant thing I found was the efficacy chart above. My smutty schoolboy brain thought it summed up how some people reason about data, i.e. complete cock.
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