The same things that would make you sick otherwise. I suggest you make a more specific question.
it can make you oober sick
Because do you want people to get sick and make other people sick do you.
it can make you get sickothers can get sick from you being sickand others get sick from it
Rotten nuts can make people sick.
In some people yes, but in most people no. If you are alegeric to it, definetely it will make you sick, but otherwise no.
yess sometimes when things or waste gets in water that will make the water sick and damped
There are a lot of people in this world that would do sick and twisted things. If you are looking for a set number, I dont think there is one because anyone and everyone is capable of doing sick and twisted things.
To make a baby sick you can expose your baby to people that are sick. Bringing the baby around people who have been sick exposes they smaller immune system and most likely the baby will catch the illness.
Not the house itself, but things in the house could. If the house if filthy, insects and rodents will be attracted and can carry disease. If the house has mold, that could make you sick. Some carpeting and other fabrics used in decorating are treated with fire retardant. The odor of this retardant has make some people sick.
make them sick
yes people do get sick on Sims 1,2,3 they also have children and do many more things