@article{oai:nsg.repo.nii.ac.jp:00004249, author = {Ikegami, Kikuo and Tsuchiya, Yasuo and Nishi, Yoshito and Gonzales, Silvia Heredia and Oyama, Tomizo and Ikoma, Toshikazu and Asai, Takao and Sekikawa, Hiroho}, issue = {1}, journal = {Niigata journal of health and welfare, 1346-8782}, month = {}, note = {application/pdf, 論文(Article), Determining the accurate rate of human parasite infections is of great importance in developing a strategy to prevent the infections. We aimed to demonstrate the parasite infection rates in people living in a high altitude area of La Paz, Bolivia. Feces were collected from 301 people, but 274 (137 males and 137 females) were considered as our study subjects because in 27 the age or sex was unknown. Feces were examined by the formalin-ether medical sedimentation method to find helminth eggs and protozoan cysts. The rates of helminth, protozoal and mixed infection with both of them were 1.8% (5), 39.1% (107) and 2.9% (8) cases among 274 examinee, respectively. The rates of the 4 helminth detected were as follows: 0.7% (2), Ascaris lumbricoides; 2.2% (6) Trichuris trichiura; 2.2% (6) Hymenolepis nana; 0.4% (1) Strongyloides stercoralis; and those of 5 protozoan parasites were 15.0% (41) Giardia lamblia; 3.3% (9) Entamoeba histolytica: 22.6% (62) Entamoeba coli; 4.7% (13) Endlimax nana; 1.1% (3) Iodamoeba buetschlii, respectively. The Infection rates were 42.3% (58/137) in males and 45.3% (62/137) in females. No significant differences were recognized in the detection rates between the males and the females. However, the infection rate of 7.7% (2/26) of E. coli in the females at age of 15 years and elder was significantly lower than that of 29.7% (33/111) in those younger less than 15 years old. Protozoal infection accounted for a large portion of the parasite infections among the subjects. Preventive measures against parasite infections in this area should largely focus on protozoal infections.}, pages = {51--56}, title = {Parasite infections among people living in a high altitude area of La Paz, Bolivia}, volume = {13}, year = {2013} }