Gotta admit, I was surprised when I was able to talk to Camille and agree to have her leave the natives alone with a 38% chance of succeeding. But then, that's the way my luck works; it's unlikely, it seems to happen. Have a really good chance of it succeeding (say, 90%), it doesn't seem to work!
I am GUESSING you can do something to help the poor guy in the slums who is breathing hard, given it had a pop up on what I could do. (zilch at the time).
Now, to do the parasite route and see what happens when I take Linda's glasses off and on repeatedly. Given Indivi's humor, I'm thinking I am very much gonna enjoy seeing Linda complain about it!