Student or Learner
Can I say that someone who suffers from tuberculosis or HIV is a: "tuberculosis bearer "or 'HIV bearer"? What's the most common term?
If your point is that the person is contagious, you might use the word carrier. It's more common just to add something like: "...and she's contagious," or: "...so don't have sex with him."
[I'm a copy editor and have tutored university writing.]