Actually, that sounds plausible to me.
Under the privacy laws, I'm sure the Ministry of Health can't release another person's medical condition (although new laws may make an exception for the medical records of the natural parents of people who were put up for adoption).
I'm sure the ministry couldn't release an HIV-infected person's name without that person's permission, and I'm not certain the ministry could do it even if the person were to say it's OK.