You should consider having the rabies vaccine if you are travelling to parts of the world where rabies is endemic and you plan to stay for a few weeks or when there is limited access to medical facilities due to the remoteness of the location.
You should always consider having the rabies vaccination if you are travelling to a part of the world where rabies is endemic. Rabies is a rare but very serious infection of the brain and nervous system and is found in Asia, Africa and Central and South America.
The UK has been free from rabies since the beginning of the 20th century with the exception of the disease present in a small amount of the wild bat population. It is, therefore, a relatively rare but nevertheless very serious disease. If you are thinking of travelling to various parts of the world, there is a distinct risk of rabies in Central and South America, Asia and Africa.