Publication: Potential health hazards of the water resources development: A health survey in the Phitsanulok Irrigation Project, Nan River Basin, Northern Thailand
Issued Date
1980-12-01
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ISSN
00383619
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2-s2.0-0019301782
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Mahidol University
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SCOPUS
Bibliographic Citation
Southeast Asian Journal of Tropical Medicine and Public Health. Vol.11, No.4 (1980), 559-565
Suggested Citation
T. Bunnag, S. Sornmani, P. Impand, C. Harinasuta Potential health hazards of the water resources development: A health survey in the Phitsanulok Irrigation Project, Nan River Basin, Northern Thailand. Southeast Asian Journal of Tropical Medicine and Public Health. Vol.11, No.4 (1980), 559-565. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/11125
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Title
Potential health hazards of the water resources development: A health survey in the Phitsanulok Irrigation Project, Nan River Basin, Northern Thailand
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Abstract
A health survey was carried out among residents of 33 villages in the Phitsanulok Irrigation Project Area, Nan River Basin, Northern Thailand, whereby general health conditions were examined, including intradermal tests for schistosomiasis japonica, stools for intestinal parasites and sera tested by circumoval precipitin test for antibodies to S. japonicum and by agglutination test for leptospiral infection. Health investigations revealed that 913 (60.9%) of 1,499 people examined had experienced gastro-intestinal disorders, 254 (17%) had poor oral hygiene and a few had mild anemia. 799 (62%) of 1,298 examined had intestinal parasites. Hookworm (45%) was most common, followed by Opisthorchis viverrini (20%), Entamoeba coli (10%), Ascaris lumbricoides (6%), intestinal flukes (2%), Enterobius vermicularis (1%) and Giardia lamblia (1%). 149 (10%) of 1,422 people gave a positive skin reaction to crude S. japonicum antigen. Circumoval precipitin test was strongly positive in 7 (1.6%) persons out of 449 tested for schistosome infection and 6(0.4%) out of 1,358 people were positive for leptospiral infection. The significant endemic diseases as potential health problems in this water resources development area are discussed.