4 ms·
There are differences in vaccine regimen too, which lead to be a statistically significant factor. (edit) The first point is in reference to the BCG hypothesis,
by greendesk 6y ago
There are differences in vaccine regimen too, which lead to be a statistically significant factor.
(edit) The first point is in reference to the BCG hypothesis, search at MedRHiv for similar entries such as:
Correlation between universal BCG vaccination policy and reduced morbidity and mortality for COVID-19"
In addition to early travel exposure, common travelling, social factors-vs-car culture, obesity and diabetes, etc.
Within Europe, the BCG hypothesis seems a differentiating factor, though further studies are necessary. The reason for the effect of the vaccine are not currently known.