I have had this scare twice this year. I am sorry you are worrying about it. To get the Hanatavirus is very very rare. You actually have to get the virus inside of your body through your mouth or nose from Mouse poop that is fresh. The virus only stays alive in the FRESH mouse poop or urine for a few hours, and also the mouse might not even be a carrier of the virus. Not many Mice are carriers of the virus, it is extremely rare, and people have more chance of being struck by lightning. So it is very very rare, not all mice carry the virus, also the virus is very weak and only lives in the mouse poop/ urine for a few hours. I'm sorry you are struggling with this. Health anxiety is horrible. I am sending you a hug.