Health problems in Norwegians travelling to distant countries.
373 travellers to countries outside Europe and North America were recruited before departure summer 1988 at the Vaccination Office, Trondheim, Norway, and participated in a follow-up study on health problems related to travel. 313 of the travellers (84%) responded by answering a postal questionnaire one month after return; it dealt with prophylactic measures, life-style, and health problems associated with travelling. An 18% failure in malaria prophylaxis and some risk-taking behaviour related to alcohol and sex were recorded. Diarrhoea (usually mild) was reported by 59%; other symptoms were also frequent. Medical advice was sought by 18% while abroad; 7% consulted a doctor. Ill health made travelling less enjoyable than expected for 8%. After return, 25% had health problems; 9% saw a doctor, three travellers were hospitalized, and 6% were absent from work. Total morbidity was high, but seldom serious. Targeted advice, which can well be given by primary health care personnel, could help to reduce morbidity and risk behaviour and improve travellers' handling of ill health.