Found (wild I think) infant mouse - need advice please!

[tmilagros]

We have a "wild" mouse "problem" in our house. We have been setting live traps and relocating the mice we catch - 2 so far - both more or less adults. I just recently opened my kitchen junk drawer in time to see a mama mouse scurry away with 4-5 babies on her breast. i delicately inspected the nest and found one left behind. we left it undisturbed for the first night. The mom didn't seem to come back and I have been feeding the tiny infant soy infant formula through a syringe for 3 days about every 3-5 hours (with gloves in hopes I don't get my scent on it). It can't be more than 4-5 days old. Its teeny tiny faint whiskers just started to appear yesterday. It is alive and seems to be doing just fine for such a tiny thing. We just caught what might be the mother yesterday (alone). What do i do now?? Do I try to reunite the baby with what may or may not be its mom? I HAD planned to nurse the baby for a couple weeks at which point our local audobon society said they would take it provided they could identify it as wild; if not, I would start checking with local vets I guess... any advice is super appreciated! We love all animals and want to treat them humanely but don't know what to do now and definitely don't want these (albeit cute) critters in the pantry leaving feces etc. - not so healthy for the kids. HELP!!! Thank you!!!!

[FlickeringHope]

No animal mother abandons her young due to human scent. That's actually a common misconception. They just bathe them and everything's fine. If she didn't come back for it, chances are it was the weakest baby with the lowest foreseen survival rate. And in that case, whether the adult you caught is mom or not, the baby probably won't get nursed anyway. You're better off continuing feeding it yourself.