The simple act of washing hands with soap and water is one of the best things to do in preventing the spread of COVID-19. But before 2020, it was also one of the most effective ways to prevent the spread of many other diseases, saving lives.

On this episode of This Is Why, we speak with a woman who has spread the message of handwashing to a billion people around the world.

Contact:

Adam Toy - @Adam_Toy on Twitter

Dave McIvor - @d_mac1519 on Twitter

This is Why - @ThisIsWhy on Twitter

Email us - [email protected]

Guests:

Myriam Sidibe, senior fellow at Harvard Kennedy School and founder of Brands on a Mission

Myriam's TED talk: The simple power of hand-washing