Urinary tract INfections.  We’ve never REALLY had a problem with flus or colds. . . we have had to give her a shot twice but that really did it’s job and allowed her to drink her fluids and take her meds orally again in about 2 hours.  I’m cautious as far as having her around others that are OBVIOUSLY sick - but I do that for myself as well and I don’t have CAH just NO desire to catch the flu!  But we’re not going to stop going to playgroup or storytime or whatever because of it.