Why it can be hard to prove a vaccine caused a bad outcome

Vancouver Sun | Sharon Kirkey | Nov 13, 2021  

The big challenge is that ‘most of the conditions, pretty well all the conditions, that can occur with adverse events following vaccination can also be triggered by other things’

Doctors in Canada who willfully refuse to be vaccinated against COVID-19 should be prohibited from seeing patients in person, Canada’s top medical journal argued this week. There is “robust” evidence, wrote the authors of the editorial published in the Canadian Medical Association Journal, to rebut claims the vaccines are experimental or unsafe, and while the vaccine-resistant are free to choose not to be inoculated, “they ought not to be free to refuse SARS-CoV-2 vaccination and to work as physicians.”

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