Whacky little Game you got there.
I thought I am missing some information though.
I won on my 2nd round but had some pure guess work to do.
I thought I can see whether someone is infected or not by judging the number going up when a group talks, while others being solo cannot infect more or get infected. I saw my number go up after a group of 3 was talking and all other citizens where solo, turns out only 1 of the 3 was infected. Weird.