@jumblies @jensimmons There is a difference indeed. Covid is transmitted through both, and one of the tragedies of the pandemic has been the denial of airborne transmissions.
See e.g. the following sources (among many others):
https://www.epa.gov/indoor-air-quality-iaq/indoor-air-and-coronavirus-covid-19
https://www.nature.com/articles/d41586-022-00925-7
https://healthydebate.ca/2025/03/topic/denial-airborne-covid-transmission/
https://academic.oup.com/cid/article/76/10/1854/7034152
https://www.sciencedirect.com/science/article/pii/S016041202031254X