COVID-19 immunity

“The creative class has converted cultural attainment into economic privilege and vice versa.
The research was done using ferrets, which have both susceptibilities to seasonal influenza viruses that affect us and have similar respiratory transmission patterns.
Viruses are simple organisms; the medical school metaphor is that of a syringe, a capsule with a spike that injects its genetic material into a cell, taking over that cell's machinery to reproduce.