As of early May 2020, the CDC listed aerosol inhalation as one of the coronavirus’s most significant ways to spread.[1]
Aerosol scientists have acknowledged that “COVID-19 has redefined airborne transmission”.[2] We now know that airborne transmission does not only concern large droplets, such as those from a cough or sneeze. Both symptomatic and asymptomatic patients produce many small respiratory particles (bioaerosols) with each exhale, and these particles are now also known to be full of the coronavirus or other communicable diseases.