This paper shows we have had a limited knowledge of, and underestimated how flu virus spreads, and also correlates the probability of coronavirus to be spread in a similar fashion, adding to the challenges of containment, and why masks work.

https://www.nature.com/articles/s41467-020-17888-w

The gist of the article shows that flu virus doesn’t need a living host for spread, nor direct contact. Aeresolized fomites can spread virus merely through air currents, turbulence, and/or minor disturbance of the flu infected corpse.

This is why I won’t go to a bar, eat indoors at a restaraunt, and if I fly or use mass transit, wear safety glasses along with a mask.