A seroepidemiological survey of Toxoplasma gondii infection among Chinese refugees, including Akka and Yau aborigines and Han people living in mountainous areas at elevations of 1,100–1,400 m in Chiang-Rai Province of northern Thailand, was conducted during January 2003 using the latex agglutination test. The overall seroprevalence of T. gondii infection was 9.1% for Akka aborigines, 37.9% for Yau aborigines, and 7.9% for Han people, respectively. No significant gender difference in seroprevalence was found among any of the groups (P > 0.05). The results of a multiple logistic regression analysis for Yau aborigines and Han people showed that the older the age, the higher the odds ratios (OR) of being seropositive (OR = 3.0, 95% confidence interval [CI] = 0.5 to 16.9, P < 0.001 and OR = 1.5, 95% CI = 0.3 to 8.0, P = 0.06 for the elderly group vs. the child group for the Yau aborigines and Han people, respectively). In contrast, the OR was lower among older Akka aboriginal populations (OR = 0.1, 95% CI = 0.0 to 0.4, P < 0.001). Ethnically, Yau aboriginal populations had a significantly higher seroprevalence than did the Akka aborigines and Han people (P < 0.001).
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December 2003
RESEARCH NOTES|
December 01 2003
Seroepidemiology of Toxoplasma gondii Infection Among Chinese Aboriginal and Han People Residing in Mountainous Areas of Northern Thailand
Chia-Kwung Fan;
Chia-Kwung Fan
aDepartment of Parasitology, College of Medicine, Taipei Medical University, No. 250 Wu-Hsin Street, Taipei 110, Taiwan, Republic of China
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Chien-Wei Liao;
Chien-Wei Liao
bInstitute of Parasitology, College of Medicine, National Yang-Ming University, Taipei 112, Taiwan, Republic of China
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Ming-Shuan Wu;
Ming-Shuan Wu
cDepartment of Internal Medicine, Wan-Fang Hospital, Taipei Medical University, Taipei 110, Taiwan, Republic of China
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Kua-Eyre Su;
Kua-Eyre Su
dDepartment of Parasitology, College of Medicine, National Taiwan University, Taipei 100, Taiwan, Republic of China
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Bor-Cheng Han
Bor-Cheng Han
eFaculty and Graduate Institute of Public Health, School of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan, Republic of China. [email protected]
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J Parasitol (2003) 89 (6): 1239–1242.
Citation
Chia-Kwung Fan, Chien-Wei Liao, Ming-Shuan Wu, Kua-Eyre Su, Bor-Cheng Han; Seroepidemiology of Toxoplasma gondii Infection Among Chinese Aboriginal and Han People Residing in Mountainous Areas of Northern Thailand. J Parasitol 1 December 2003; 89 (6): 1239–1242. doi: https://doi.org/10.1645/GE-3215RN
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