I’m still trying to understand how COVID-19 actually spreads. (Related to my recent question on touching-vs-breathing.) Based largely on this article, my current very-low-confidence belief (in decreasing order of importance):
Top transmission risk: Being near (2 meters) someone coughing … or talking! Talking emits droplets / aerosols too. Is that the key to the pre-symptomatic transmission we know is happening? Hmm.
Second transmission risk: Air in or around public restrooms. Apparently a SARS carrier with diarrhea was a super-spreader, infecting people 200 meters away!! That same link also discusses evidence that COVID-19 virus is found around bathrooms.
Last transmission risk: Touching contaminated surfaces then my face. While I am ranking this at the bottom, it could still be important, and I continue to take the same gung-ho precautions as when I formerly thought this was the primary thing to be thinking about.
Again, very low confidence in all this. Thoughts?