It is a matter in the first place for intending travellers to countries where certain infectious diseases are prevalent to familiarise themselves with the general advice on immunisation for travellers to the country concerned. Advice and information is obtainable through general practitioners, health boards, travel health centres, travel agents or the embassy or consulate of the country which it is intended to visit. In addition to the traditional immunisation advice, intending travellers should also consider seeking advice on a range of other issues, for example, whether they are medically fit to travel, what medical provision should be made for individuals with pre-existing illness and what general precautions should be taken in relation to eating, drinking and exposure to a different environment from that to which people are accustomed.