[Vaccinations for travel abroad].

Travel to the developing world by Swiss citizens has been increasing. Vaccine-preventable diseases challenges the physician to provide pre-travel advice. Each traveler's itinerary, duration of stay and medical history, including previous immunization, should be reviewed.

[Business travel and staying abroad].

The growing internationalization of business and the economy is leading more and more working people to spend short or even long stays abroad. With fast journeys across several time zones, travellers are mainly confronted with problems of time difference adjustment, commonly known as "jet lag". For longer stays, especially when the family comes along too, a number of additional difficulties may arise which are not normally faced by tourists.

Liver disease in rural Tanzania--a diagnostic approach.

In a prospective study on the aetiology of liver disease and its diagnostic approach in a District hospital in rural Tanzania, 48 consecutive patients with evidence of liver disorders were investigated by physical examination, biochemical tests, laparoscopy and histology. Liver cirrhosis (posthepatic, alcoholic) was found in 31%; non cirrhotic alcoholic liver disease in 15%; viral, bacterial and protozoal liver disorders in 33%, and neoplastic liver changes in 21% of all patients. Clinical impression alone coincided with the final diagnosis in 40% of all cases.

Iron chelators: in vitro inhibitory effect on the liver stage of rodent and human malaria.

The activity of desferrioxamine (Desferal) and desferrithiocin (a newly developed oral iron chelator) was evaluated against the liver stage of Plasmodium yoelii and P. falciparum in the rodent and the human hepatocyte in vitro culture system. The two iron chelators were found to inhibit the liver schizogony of both the rodent and the human Plasmodium species at concentrations achievable in vivo.

[Cutaneous diphtheria imported from tropical countries].

Two cases of imported cutaneous diphtheria from tropical areas are described. Vacationing in the Seychelles, a 29-year-old man injured his left malleolus a few weeks before his return to Switzerland. The wound did not heal and an ulcer developed.

Chloroquine administration for malaria suppression after abdominal surgery.

Administration of chloroquine after major surgery is indicated in malaria endemic areas. In emergencies it is commonly administered parenterally after the operation. The present study, undertaken at St.

[Selection of chloroquine-resistant Plasmodium falciparum strains in tourists under chemoprophylaxis].

In a prospective study 20 P. falciparum isolates imported from Africa by non-immune tourists were investigated for chloroquine sensitivity using the in vitro microtest and the results were compared with the plasma chloroquine concentration. All 6 patients taking correct chloroquine prophylaxis (chloroquine plasma levels between 0.

[Poisoning by domestic vipers (Vipera berus and Vipera aspis). A retrospective study of 113 patients].

In a retrospective study, 113 bites which occurred in Switzerland within a 16-year period by either of the two indigenous adders (Vipera berus and Vipera aspis) were analyzed. 13 patients showed no signs of envenomation. Out of the other 100, 62 patients had merely minor (local edema only) and 24 moderate envenomation (vomiting, diarrhea, cramps, hypotension), while 24 had severe envenomation (shock and angioneurotic edema of the tongue and lips).

[Snake bites and coagulation disorders].

Within a period of 6 years 8 patients with 12 bites by potentially hemotoxic snakes (crotalids, viperids) were hospitalised in various clinics of the Basle area. All the patients were snake owners. One patient was hospitalized 3 times, 2 patients twice and the others once.

[The anti-arrhythmia drug quinidine as an alternative in the treatment of severe falciparum malaria].

Parenteral quinine is the most effective treatment for severe falciparum malaria. It is not easily available in Switzerland and so dangerous delays treating patients may occur. The antiarrhythmic drug quinidine, usually stocked by hospitals, is an alternative drug for malaria treatment.

[Hematuria in Schistosoma mansoni bilharziosis].

Following a stay of a few months in Africa, a 9 year old boy developed gross hematuria, dysuria and pollakisuria. Two urine cultures remained sterile, the intravenous urography was normal. Therefore a tropical disease was looked for.

[Multifocal pulmonary bilharzioma due to Schistosoma mansoni].

A case of mixed schistosomiasis in an African female immigrant from Cameroon is reported. Schistosoma mansoni was found in a symptomatic double abscess of the lower lobe of the left lung (1981). S.

[Spurious infections by the small liver fluke (Dicrocoelium dendriticum) in Switzerland 1976-1980].

The lancet fluke is a common parasite in Swiss sheep and cattle. From 1976 to 1980, 77 patients were found to have eggs of D. dendriticum in the stool.

Gastroduodenitis and peptic ulcer in a rural Liberian community. An endoscopic prospective study.

In a prospective study on a Liberian rubber plantation lasting over 12 months, 79 consecutive patients with recurrent epigastric pain as well as 15 controls without evidence of gastrointestinal disease were endoscoped with a fiberoptic instrument. Peptic ulcers were found in 7 (9%) of the 79 patients; 3 were in the prepyloric antrum and 4 in the duodenal bulb. The incidence of symptomatic peptic ulcer disease estimated from the data was 0.