• People are most infectious in the initial period of infection, when it is common to have few or no symptoms
  • Cloth masks obstruct a high portion of the droplets from the mouth and nose that spread the virus
  • Non-medical masks have been effective in reducing transmission of coronavirus
  • Cloth masks can be washed in soapy water and re-used
  • Places and time periods where mask usage is required or widespread have been shown to substantially lower community transmission
  • Public mask wearing is most effective at stopping spread of the virus when the vast majority of the public uses masks
  • Laws appear to be highly effective at increasing compliance and slowing or stopping the spread of COVID-19.