Excellent advice Ngaire. Here's a CDC link discussing Yellow Fever vaccine waivers. (
Yellow Fever Waivers ) It sounds more involved than simply getting a medical waiver letter from a GP or Internist.
Dave, this was what I was afraid of. My doctor probably doesn't have the yellow fever stamp but the infectious disease doctor that has the stamp doesn't know my medical records. It looks like i am going to need to have my doctor fax records to the second doctor and I am going to need to go in and pay him a $100 for the stamped letter and counseling.
I think I will call Regent tomorrow to find out exactly what "they" need to let me on the ship.
edited to add:
I just saw on WHO website that once in a lifetime is enough; no need for booster after ten years. Since i was vaccinated in 1983, and I still have the original booklet, i might be in the clear.

I will call Regent tomorrow to confirm.