*** evidence that COVID-19 is transmission being due to being aerosolized? ***
I would think the micron size of the virus is a strong indicator it can/is capable of aerosol transmission.
I found these, but from PRC sources, so it should be considered suspect without further corroboration:
https://www3.nhk.or.jp/nhkworld/en/news/20200219_43/
but the Singapore Ministry of Health says “Singaporean MOH: No evidence of aerosol transmission for novel coronavirus”
Then found this “Review of Aerosol Transmission of Influenza A Virus”
https://wwwnc.cdc.gov/eid/article/12/11/06-0426_article
and this “Controversy: Respiratory Protection for Healthcare Workers”
https://www.medscape.com/viewarticle/741245_3