Conflicting messages from public health authorities have fueled much confusion over COVID-19, especially regarding its transmission.
The terms “aerosol,” “airborne,” and “droplet” have made the rounds in tries to explain the way the novel coronavirus may spread, but without sufficient explanations.

There is still debate over the precise role airborne transmission plays in spreading COVID-19, stated William Schaffner, M.D., a professor of preventive medicine and infectious condition at Vanderbilt University Medical Center.
‘Aerosol’ vs. ‘airborne’ vs. ‘droplets’ amid COVID-19 …. https://www.msn.com/en-us/health/medical/aerosol-vs-airborne-vs-droplets-amid-covid-19-what-you-need-to-know/ar-BB19DtJP