Found a dead mouse - hantavirus scare

We found a dead mouse in our garage. It had pooped everywhere on a shelf but it's been dead for a while and the droppings were dried up. My husband picked it up with a plastic bag and threw it away. now he's been feeling off but not symptomatic. The droppings are still there though. 
We read about hantavirus from mouse droppings and how bad it is for pregnant women, as bad as toxoplasmosis.
Anybody have experience with encountering dead mice? My husband has a compromised immune system due to Crohn's disease and mine is too due to the pregnancy.