Nope that doesnt work either - been infected lots of times by reds with no update. Should I just abandon it?
Have you used the "Reset Quest" option yet? If you have done that and it didn't work, then yes, you should abandon the quest and go back to the quest-giver and try again. You can also try logging off and on again between abandoning the quest and re-taking it, if that makes you feel better. This usually resolves the issue regardless.