UC Davis Air Quality Research Director, Dr. Tony Wexler, looked into what role aerosols play in the transmission of coronavirus particles with colleagues William Ristenpart (UC Davis), Nicole Bouvier (Icahn School of Medicine at Mount Sinai), and Sima Asadi (UC Davis).

Reviewing the brief knowns on aerosol transmission of particles and earlier research on other coronavirus', they argue

that speech plausibly serves as an important and under-recognized transmission mechanism for COVID-19.