> A lot of spraying is just public health theater. How does running trucks and people through neighborhoods spraying roads and all surfaces kill any virus. It

> A lot of spraying is just public health theater. How does running trucks and people through neighborhoods spraying roads and all surfaces kill any virus. It is similar to carpet bombing to eliminate rodents. I saw this first in pictures out China and wondered how effective that is and how harmful to public health and what exactly are they spraying? It's sometimes literal theater, complete with fist-pumping music and dramatic marching: https://www.youtube.com/watch?v=GiDnde-ig3A https://www.youtube.com/watch?v=GiDnde-ig3A > Workers disinfect Hankou railway station in Wuhan, which has been closed for 58 days due to the coronavirus outbreak, on Friday. The transportation hub, whose reopening time is yet to be determined, can accommodate up to 160,000 passengers in normal times. Spraying like this probably makes sense in certain circumstances, like when attempting to quickly reopen a recently contaminated area when spread is otherwise controlled, but I don't think anyone's claimed the virus can remain viable for 58 days on any type of surface.