How Contagious Is MRSA?

My mother is 86 years old. She lives in assisted living. Her tongue was bothering her for about 6 months and her eating habit changed. She was diagnosed with MRSA about a week ago. She is taking a antibiotic and a pill once a day for her immune system. I informed the person in charge where she lives of her condition. She was moved out of her room, which was shared with another person. She is now in a room by herself, but someone still takes food to her three times a day. I asked my mother did the person have on gloves and she said no. I want to go see her but I have been reading about MRSA and the information says if you are a roommate with someone with MRSA you should wear a disposable gown, mask and gloves. I don t know what to do. I want to know how contagious is MRSA as far as hugging, holding hands, on your clothes, airborne.