Children are infected with the virus without suffering a serious disease and represent an important source of infection. It has been experimentally proven that young mice respond to lung tissue damage from viral infection through prostaglandins, while adult mice succumb. The angiotensin enzyme (ACE) 2 receptor is particularly abundant on the cel situation explains the high incidence of bronchitis and pneumonia related to the severe infection of COVID similar to that of influenza such as that of 1957 or 1968., rather than those of SARS or MERS, characterized respectively by a fatality of 10% and ls of the lower lung pathways, whose -19. This suggests that the overall clinical consequences of COVID severe seasonal flu, which has a fatality rate of approximately 0.1%, or pandemic 36%. - converting -19 could ultimately be