In other words, don't let your pregnant wife take care of the litter box and wash your hands after you've cleaned it.
Oh, and if you have a weakened immune system, you're likely to get all sort of health issues - considering how many kid these days seems to be allergic to this and that and intolerant to so and so...
If I may put forward a slice of personal philosophy, I feel that man has ruled this world as a stumbling demented child-king long enough! And as his empire crumbles, my precious Black Widow Kitty shall rise as his most fitting successor!