It doesn't fly through the air, (and even if it did, you would need to
swallow it, and it would need to
be over three days old). Get your husband to clean
the cat box by all means, but if he is being a drag about it, put on some of those little disposable vinyl gloves they sell in the grocery store in 20-paks, and do it yourself. Or just do it every day.
Raw meat can pass the toxo pathogen to you, or it can be in the soil, so take care in those circumstances too.