Effects of repeated praziquantel treatment on schistosomiasis mekongi morbidity as detected by ultrasonography.

Schistosomiasis mekongi is endemic in the Mekong River basin; about 80,000 people are at risk of infection in Cambodia. We conducted ultrasonographic studies of patients with schistosomiasis mekongi in Kratie province, Cambodia, focusing especially on the relationship between the frequency of praziquantel treatment and findings of ultrasonographic imaging. The frequency of praziquantel treatment in the period from 1995 to 2002 was classified into four groups: 1-2, 3-4, 5-6, and 7-8 times.

Determination of the period for establishment of a liver network echogenic pattern in Schistosoma japonicum infection.

Schistosomiasis is caused by infection with Schistosoma haematobium, S. mansoni, S. japonicum, or S.