This effect isn't specific to traffic deaths as it can be seen with all non-COVID deaths in the unvaccinated, and is a result of incorrect use of statistics by health authorities. The actual reason is explained by Prof Norman Fenton here:<p><a href="https://probabilityandlaw.blogspot.com/2021/12/the-impact-of-misclassifying-deaths-in.html" rel="nofollow">https://probabilityandlaw.blogspot.com/2021/12/the-impact-of...</a><p>The root cause is the conflation of unvaccinated and recently vaccinated. That is, health authorities will consider you unvaccinated for a period of time (weeks, sometimes months) after your shots because they believe that the vaccines don't work until that time has elapsed. This is an incorrect methodology and creates something called immortal time bias.<p><a href="https://catalogofbias.org/biases/immortal-time-bias/" rel="nofollow">https://catalogofbias.org/biases/immortal-time-bias/</a><p>If you take your first/second shot and then die during the waiting period, you will be classed as an unvaccinated death. This creates a period of time in which those who make it through to become classed as vaccinated were effectively 'immortal'. By treating the data this way even injecting people with water would appear to have positive efficacy, although this bias fades with time.<p>Health authorities do this because the drug companies did it this way. The correct approach would have been to class people into three buckets: unvaccinated, vaccinated pending activation, fully vaccinated. They don't do this, perhaps because it would have had knock-on effects on everything else e.g. vaccine mandates would have needed policies for the pending activation block. It would also have led people to wonder about the biological basis for this waiting period and why it was so long, when people were being told the spike protein fully dissipates within 48 hours or less.