I purchased two guinea pigs about a week ago. A few days ago I noticed one had a bald patch of hair on its nose. Thinking it just got pulled out I observed the two to make sure they weren’t fighting. I only saw he was scratching a lot. So I took him back to the pet store today so he could be seen by a vet and they said it was probably ringworm. So my question is, how likely is it the other one also has it? I haven’t noticed any scratching or missing hair from the other. Also, my daughter has handled the guinea pig almost daily.