4 ms·
Of course you can meaningfully measure effectiveness. Effectiveness (real world) is measured by comparing reported infection rates between the vaxxed and unvaxx
by native_samples 5y ago
Of course you can meaningfully measure effectiveness. Effectiveness (real world) is measured by comparing reported infection rates between the vaxxed and unvaxxed. Those not only fall with time (why do you believe otherwise?) but are now negative in the UK, where I'm from: vaccinated people are getting COVID at a higher rate and nobody has a good explanation of why ("behavioural differences" being the government's current choice). This real world data is then adjusted to try and turn it into efficacy (ideal conditions, vaccine only).
- jjeaff 5y agoIt's not so easy to measure. Because the groups of vaccinated and unvaccinated are not randomly distributed. Behavior has something to do with it, I'm sure. But most likely is that the older, most susceptible, poor health people are vaccinated while the younger, healthier populations are less likely to have been vaccinated.
- native_samples 5y agoThe data is age stratified. Wrt different levels of health, yes, but there's some good analysis of this that shows it looks like the least healthy aren't vaccinated at all (probably because they're already dying) and this creates an artificial boost to the vaccines effectiveness against death. In the UK at least.