Assuming that there is no other solution than herd immunity in front of the current pandemic, on which categories of … citizens should we build this herd immunity? Given the fact that young people face a mortality rate which is at least a … offer Covid protection to the elders by conning them as long as this herd immunity has not been attained by the younger …

behaviour delays herd immunity but also reduces overall infections to approximately the minimum consistent with herd immunity …": they shield too much in the hope that others catch the disease and reach herd immunity. This and other externalities drive …

reproduction rate as well as on additional facets as immigration, adaptive immunity, and vaccination. Usually, in the existing …