I think it's difficult to define exactly how this or any virus spreads in the populous. If you have say 50 people on a bus or train carriage and nobody is contagious then no one will catch anything, but if that same area has only 5 people in it and one is carrying a virus then the possibility of falling victim is obviously much greater even though there are less people in one space.
I know that's stating the obvious but then it only takes one person to technically infect thousands indirectly.
I know that's stating the obvious but then it only takes one person to technically infect thousands indirectly.