Does Doug have any other symptoms - frequentcy - pressure any thing that should have cleared up since the last BCG? I did not have the fever, but I did have other symptoms. BCG Cystitis does not always return a "positive" urine culture. Mine did not show a positive reading, but I sure have BCG Cystitis and because it was not pick-up, and my Uro wouldn't listen to me, I was delayed 3 1/2 weeks of treating the cystitis.
And as Patricia said, any fever this long can certainly be a problem stemming from the BCG.
Good Luck
Nix