Should Hepatitis B carriers be prevented from working with "vulnerable population"?

I was told that people with Hep B cannot work with vulnerable population such as people with intellectual and mental disabilities. Of the 350 million individuals worldwide infected with the hepatitis B virus (HBV), one-third reside in China, 130 million Chinese people are Hep B carriers and 30 million chronically infected, i dont think it is fair at all that to punish people who got infected through neonatal infection, not to mention we are often told it is not legal to discriminate based on the way someone is born or their life style choices.

The irony and tragedy is that, I am prevented from working with people with disabilities because of my disability.