That would depend on if it is kept clean. Dirt trapped in the carpet can cause Allergies. And where there is dirt there are likely mites or other types of bugs. If it is kept clean then it should be ok.
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.
It depends on how long they were left out.
If it was left out at room temperature, yes it could make you sick.
It could. Depends how long it was left out, what temperature did it reach for how long and was it contaminated with any pathogens.
whoever left that you are serisously sick. (i erased the message)
probably, because the cheese left out might be spoiled or rotten. I wouldn't do it.
will the spoiled gumbo make you sick
Nope, i'd take off any vegetables though
Yes. A sick kitten can make other cats sick.
anything can make you sick
Entamoeba spp . can make you sick .
There are an unlimited number of substances that will make you sick. Molds and spoiled foods will make you sick for example.