Analysis of information sources in references of the Wikipedia article "코로나19 백신에 대한 잘못된 정보와 기피 현상" in Korean language version.
The base rate fallacy. That means a very critical piece of information is missing, the base rate. The base rate is basically how common some characteristic is in a group. So in this case, the base rate that we care about is what percentage of the country's population has already been vaccinated. And the answer is 71%. Seventy-one percent of the total population of Iceland has been vaccinated. So that's a lot of people.
Counter-intuitively, these statistics show that the death rates for the vaccinated in this age grouping were greater than for the unvaccinated. These numbers have since been heavily promoted and highlighted on social media by anti-vaccine advocates, who use them to argue that vaccination increases the risk of death.