we are joining this cruise Bali to Barcelona.
received the following notification from Seabourn re: YF on 15 February
VACCINATION NOTIFICATION Please be advised that a Yellow Fever vaccination is an International health requirement for all persons on this itinerary and a valid, original certificate for Yellow Fever or waiver must be presented during check-in. The Yellow Fever vaccine must be given before your trip and is good for life. Guests ages 60 and above may produce a written waiver from their doctor. If you have a medical contraindication to the vaccine, you must bring a signed exemption letter issued by a licensed medical doctor. Please note photocopies are not acceptable. Failure to present valid proof of Yellow Fever vaccination or a waiver or exemption letter may result in denial of boarding. For more information about Yellow Fever, please visit https://www.cdc.gov/yellowfever While traveling, we advise taking precautions to help prevent mosquito bites, such as covering exposed skin, and using insect repellent