Recall the “cytokine storm” – a situation when a person’s immune system continues to fight even after the virus is neutralized. Molecules-cytokines continue to be released, attacking the lungs, liver, other organs and fraying the body. Such over-reaction can result in death. This is what scientists explain why among the victims of epidemics of Spanish flu, SARS, and COVID-19 a lot of young and healthy people.
By the way, he has a Warm asked, “do not join if bacterial pneumonia if previously vaccinated for pneumococcus”. But the answer of the doctor was disappointed: “do Not join only the pneumococcus. But this is already a help.”