If you live with a woman who has lots of cats and some of the indicators of toxo, then-- because she is likely to be a risk taker-- you are at risk of becoming infected. This is true whether you are husband, lover, child, or room mate. This is because she is a risk taker, and will take risks with how she handles food, kitchen implements, etc that will increase your risk.
The risk of getting toxo cannot be controlled by you exercising good hygeinic practices. It also depends on everyone around you who handles cats to also exercise good hygeine. But those with toxo are the ones who will stretch the "5 second rule" to "less than a minute". And then comfortably serve you the canape that was just rescued from the floor next to the cat's litter box.
Not all cat owners are dangerous to your health. But those who have multiple cats and don't mind living in a house with a permanent faint odor of cat piss maybe should be regarded as dangerous.
BTW, I don't know for sure whether this is a gender-specific thing and I may be doing a bad in implying that this is a women's issue kind of thing. Anecdotally it seems that way, and the research seems to suggest that men are not as susceptible to toxo induced behavioral problems as are women. But I don't know that for sure.