Covid-19: how effective is hand washing really?

“They were wrong, they meant monkey pox! a doctor laughs yellow. The government, and in particular the Ministry of Health, continues to publish messages on social networks encouraging people to wash their hands to protect themselves from Covid-19. The new Minister of Health François Braun also insisted on this point, Tuesday evening, during his hearing in the Committee of the Laws of the National Assembly. However, it is now established that SARS-CoV-2 is an airborne virus, that is to say that it spreads strongly and easily through the air. What question the real impact of hand washing.