[Medical advice for travellers].

When counselling travellers to overseas countries, attention should be paid not only to the health and safety conditions within the country of destination, but also to the general health of the traveller and to the personal risk he might take on his journey. Rarely, though, a person has to be discouraged from an overseas trip these days because of a constitutional or medical incapacity, a classification of which is given in the article. It is, however, indispensable to give advice on how to avoid exposure for a number of nuisances and diseases, particularly diarrhea, insect-stings and arthropod borne diseases and STD, as well as accidents.