The methods of transmission are additive, not exclusive. R[sub]0[/sub] is measured and not altered by or calculated from the transmission model, the transmission model has to fit the observed R[sub]0[/sub]. Proving one pathway is less infectious, just means some other mechanism has to make up for the shortfall, R[sub]0[/sub] won't change. So I'm not sure what your point is here.
Experts on transmission have said right from the start infection risks from surfaces or ingestion are very low, very early on I recall posting a comment that a virology expert claimed to catch SARS-CoV-2 from ingestion you would basically have to drink a 300mL of concentrated virus.
The main problem seems to be that spreading SARS-CoV-2 via surfaces increases the public exposure risk, it's the same functional argument as calling for the use of masks to protect others by using them correctly, as in disposing of single use masks after a single use.
The more people get exposed through contact the more likely someone becomes unlucky number 1:10000, for example from a mass transit system, who can then they can spread it locally via exhalation at a much higher rate! Of course on the mass transit system the chance remains much higher that you've inhaled COVID than collected it off a surface, but the R[sub]0[/sub] doesn't change.
Of course all this social media argy bargy goes on as Michigan locks down with thousands of new cases everyday! Michigan was pretty much 50/50 in the election, will Trump offer half the population his $30K/person treatment?
Experts on transmission have said right from the start infection risks from surfaces or ingestion are very low, very early on I recall posting a comment that a virology expert claimed to catch SARS-CoV-2 from ingestion you would basically have to drink a 300mL of concentrated virus.
The main problem seems to be that spreading SARS-CoV-2 via surfaces increases the public exposure risk, it's the same functional argument as calling for the use of masks to protect others by using them correctly, as in disposing of single use masks after a single use.
The more people get exposed through contact the more likely someone becomes unlucky number 1:10000, for example from a mass transit system, who can then they can spread it locally via exhalation at a much higher rate! Of course on the mass transit system the chance remains much higher that you've inhaled COVID than collected it off a surface, but the R[sub]0[/sub] doesn't change.
Of course all this social media argy bargy goes on as Michigan locks down with thousands of new cases everyday! Michigan was pretty much 50/50 in the election, will Trump offer half the population his $30K/person treatment?
"Ruck, ruck, ruck, ruck ....... Ruck, ruck, ruck, ruck"