No specific vaccinations are required before traveling to Ubud. If you are traveling to Bali for a long period of time, vaccinations for Ubud and other resorts in Indonesia may be required. But it's a routine set of preventive care like hepatitis, tetanus, and typhoid vaccinations. Be careful not to drink untested water bought in trays on the streets, buy bottled water in stores, and don't take it from hand.
In hot countries, water is sold everywhere, often with ice, and these are the ones that cause disease. Water is rarely boiled and ice can be made from untreated river water. Adhere to safety rules, and the question of what vaccinations are needed in Bali will disappear.
