How much do you know about masks as a measure to impede the spread of COVID-19?

In a post titled “Should the Government Give the Public Access to N95 Masks to help curb the COVID Pandemic” (January 24, 2021), Dr Daliah Wachs MD has provided valuable science to consider for those engaged in debate. Following is how she set the stage.

• “Why are cases rising despite mandatory mask requirements?
• Should Americans be wearing what healthcare workers use to protect themselves from pathogens …?