I was watching One Born Every Minute the other day and they had a black midwife on there, she was lovely. It got me thinking though, I have seen some doctors and hospital staff who are foreign and that ideally I would not want to see me because I haven't been able to easily understand what they are saying. The midwife on telly appeared to be English, English accent and mannerisms. Having said that I wouldn't want somebody with a very strong local accent that I couldn't understand either although I would feel a lot happier voicing that.
I think we all have prejudices, obviously myself included but it's not easy to just change what you think and feel.