Covid-19: Quelle différence entre cas grave en réa et cas sévère ? <iframe width="912" height="513" src="https://www.youtube.com/embed/7OoS-B9rzxI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> A.K.C - Senegal7