We can't explain the unexplainable or lies. Sorry but they have 2 people who they claim have HIV yet 2 other people from the same incident does not have HIV.
Also this is from 1987 and directly from the article, "unrecognized or forgotten needle-stick exposures to other infected patients cannot be totally excluded. The exact route of transmission in these three cases is not known."
I ecourage you to stop searching online for things like that, will only cause you more harm and not believe the CORRECT advice you have been given.