European Journal of Cardiovascular Medicine

In October, 2019, ’No Mask Campaign’ was launched by one of the three most famous and tertiary central hospitals in Wuhan, to promote eye and facial expression communication with patients in flu season, which was followed as a practice standard by other hospitals in the city [1]. Two months later, it came the uncontrolled outbreak of COVID-19. It is reasonable to ask the question: Whether inadequate use of facial mask, the traditional personal protective equipment, contributed to the tragedic widespread of this novel coronavirus infection.