I think it obviously can happen. I'm just saying that a mask might not do much in a room full of mostly no maskers over a period of 6 hours like a classroom.Outdated and one of the best examples of how 'following the science' is influenced by US politics and economic policy.
Australian authorities documented transmission between two passing travelers in Bondi Junction, NSW where infection occurred after only a few seconds of passing exposure
Australian health officials are warning it no longer takes up to 15 minutes to pass on the deadly virus — it can be a "fleeting moment" of just five to 10 seconds.www.abc.net.au
Well known case in Aus that influenced health policy there. In the US, business lobby and R states pushed back on CDC saying anything less than 15 minutes and closer than 6 feet. To say so would mean people need to wear masks everywhere! Like China!
The new data probably supports that mask is even less effective if its that contagious when not everyone is masking up.
So with omicron that 25 hours of N95 to N95 is probably closer to 2.5 hours