OK, so I'm thinking about this one right now because my daughter (6 months) is waking up congested every morning with a productive cough. It's just not going away, after more than 3 months. I'm terrified that she's a carrier for HiB or some scary strain of strep pneumo, and as soon as there's a break in the throat to the bloodstream that she'll get invasive disease.
So I grant that I am paranoid, but I'm wondering how HiB works. Do people carry HiB and then when the conditions are right, it turns invasive? Or, if they carry it, do they build antibodies against it that would then help them fight it, thus only making it dangerous when you are first exposed?
I'm uninformed. Can anyone educate me?
BTW, is it likely that she's carrying a bacteria in her ENT that could turn scary based on symptoms? ( posted in H &H too, but curious about what people here think).