The XXXX ; an outbreak in Dutch tourists to the Omo National Park, Ethiopia.

@entity1712 @entity1 @entity27021 @entity4 @entity383 @entity281 @entity2040 @entity6191 @entity10 @entity925 @entity221 @entity110
The @entity2040 , the early stage of schistosomal disease, occurs 3 to 6 weeks after @entity281 . The main symptoms are @entity221 , @entity110 , @entity4 and @entity6191 . @entity1712 is a constant finding. The syndrome developed in a group of Dutch tourists after a visit in early November 1975 to the Omo National Park, southwest Ethiopia. Eight out of 10 infected @entity1 became clinically ill. The incubation period varied from 4 to 41 days with a mean of 26 days. Pyrexia occurred in 6 @entity1 , usually associated with @entity10 and @entity925 ; only to one @entity1 the @entity221 lasted for more than two weeks. @entity221 followed by @entity4 was present in one @entity1 . Two @entity1 were afebrile, one suffered from @entity110 , the other from @entity6191 . Two visitors remained asymptomatic, but the results of serological tests showed that they were also infected. The liver function was disturbed in one @entity1 during the febrile period and further deteriorated during treatment with @entity27021 . @entity383 eggs were detected in small numbers in two @entity1 , 6 months and 19 months after @entity281 . Obviously the tourists harboured few adult worms. They probably had been infected by few cercariae; the possibility that they were infected by cercariae of a @entity383 not well adapted to @entity1 was considered.
