[stupac2]

If you could actually get sick by walking 30' behind someone who has it, the R0 would be a lot higher. My understanding has never been that 6' is safe if it's sustained for a long time, but rather that it's a rule for thumb for transient interactions.

So it's not terribly surprising to me to see that sustained exposure (like in a restaurant) could spread it past those distances, but it would be surprising to me to see that walking behind someone outdoors could spread it, beyond "one in a million" type bad luck.

[stupac2]

If you could actually get sick by walking 30' behind someone who has it, the R0 would be a lot higher. My understanding has never been that 6' is safe if it's sustained for a long time, but rather that it's a rule for thumb for transient interactions.

So it's not terribly surprising to me to see that sustained exposure (like in a restaurant) could spread it past those distances, but it would be surprising to me to see that walking behind someone outdoors could spread it, beyond "one in a million" type bad luck.