Concerns about rising mice

My concern is potentially getting sick from my feeders, since mice are known for carrying diseases.
I have read that disease from them can become airborne from dust, I'm assuming from their own bedding mixed with urin, feces etc.

I have a small colony already that I keep out in the garage. I got them from pet stores, and recently I got a trio from a breeder.
I did bring in a batch of wild baby mice I found in bag of soil (didn't know they were in there when taking the soil to a job site) and tride to introduce them to a mother mouse I already had, hoping she would foster them. Turned out she rejected them and ate a couple.
Now I'm concerned she may have potentially contracted something from the wild mice babies (she seems fine, and so do her other babies)

Long story short
Has anyone ever gotten sick from their own feeder mice?
I'm wondering if I should just feed f/t mice instead.
I have quite a few corn snakes (close to 20, most are hatchlings.)

Any advice appreciated! Thank you.