Volume 23, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The isolated Lake Lindu Valley of Central Sulawesi is the only reported Indonesian focus of oriental schistosomiasis. In April 1972 a parasitological survey involving over 1,400 people was conducted in the valley's four villages. infections were detected in 37.9% of all Lindu people by direct and formalin-ether concentration examinations of stools: 57.1% in Anca, 42.4% in Tomado, 30.0% in Langko, and 11.7% in Puroo. Peak prevalences of schistosomiasis were reached in the second decade of life and remained high thereafter among both male and female populations. Prevalences of other helminthic parasites are reported as follows: , <0.1%; , 0.2%; , 0.8%; , 8.8%; , 15.2%; and hookworm (), 69.6%. No infection was detected. Intestinal protozoa including , and were also encountered. In blood smears collected from 1,348 people, microfilariae were detected in 5.4% of the population, and and in 2.5%. Filariasis was more frequent in older age groups, while most malaria infections were found in Lindu residents 10 years old or younger.


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