Mother in hospital quarantine for MRSA, I refuse to visit, am I wrong?

I know this sounds terrible, but my mother has been in quarantine at our local hospital for the past week after testing positive for CA-MRSA. She'd been sick previously with Shingles (scabs might have opened up, enabling the staph to enter her already weakened body). Ever since she went into the hospital, I haven't visited, nor have my husband or children (her grandchildren) though we do call her multiple times a day to see how she is feeling and to chit-chat (she enjoys this.) Last night I received a nasty phone call from an elderly relative of mine, scolding me for not spending every free moment with my mother.."after all, you CAN wear a gown/gloves/mask..they told you you could!"..was screamed at me. My simple response was that I, myself, have had MRSA before..and its a vile, painful ordeal to go through and I don't want to get re-infected with it, nor have my husband or children infected..AND that we would see her when she was better. I was then hung up on. Am I right in doing this? I just want to keep my family healthy.