Fan Chia-Kwung, Liao Chien-Wei, Wu Ming-Shuan, Su Kua-Eyre, Han Bor-Cheng
Department of Parasitology, College of Medicine, Taipei Medical University, No. 250 Wu-Hsin Street, Taipei 110, Taiwan, Republic of China.
J Parasitol. 2003 Dec;89(6):1239-42. doi: 10.1645/GE-3215RN.
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).
2003年1月，采用乳胶凝集试验，对泰国北部清莱府海拔1100 - 1400米山区的阿卡族、瑶族人以及汉族中国难民中的弓形虫感染情况进行了血清流行病学调查。阿卡族原住民的弓形虫感染总体血清阳性率为9.1%，瑶族原住民为37.9%，汉族为7.9%。各群体中均未发现血清阳性率存在显著性别差异（P>0.05）。对瑶族和汉族进行的多元逻辑回归分析结果显示，年龄越大，血清阳性的比值比（OR）越高（瑶族和汉族老年组与儿童组相比，OR分别为= 3.0，95%置信区间[CI]= 0.5至16.9，P<0.001；OR = 1.5，95% CI = 0.3至8.0，P = 0.06）。相比之下，阿卡族老年人群体的OR较低（OR = 0.1，95% CI = 0.0至0.4，P<0.001）。在种族方面，瑶族人群的血清阳性率显著高于阿卡族和汉族（P<0.001）。
