Morakote N, Thamasonthi W, Charuchinda K, Khamboonruang C
Southeast Asian J Trop Med Public Health. 1984 Mar;15(1):80-5.
Five hundred sera from blood donors were examined for antibodies to Toxoplasma by the indirect hemagglutination antibody (IHA) and the indirect fluorescent antibody (IFA) techniques. In addition, the IHA test was used to detect Toxoplasma antibodies in 500 pregnant women's sera. It was found that 4.6% of the blood donors were positive by the IHA and only 1.2% by the IFA methods. The seroprevalence, however, was less in pregnant women as only 2.8% were positive. Interestingly, 7.5% of the blood donors and 15.2% of pregnant women showed no detectable antibodies. The frequency distribution curves of IHA titers were unimodal in both groups studied. From the basis of these findings, it was concluded that there was a low degree of Toxoplasma transmission in Chiang Mai.
采用间接血凝抗体(IHA)和间接荧光抗体(IFA)技术检测了500份献血者血清中的弓形虫抗体。此外,还使用IHA试验检测了500份孕妇血清中的弓形虫抗体。结果发现,IHA法检测的献血者阳性率为4.6%,而IFA法仅为1.2%。然而,孕妇中的血清阳性率较低,只有2.8%呈阳性。有趣的是,7.5%的献血者和15.2%的孕妇未检测到抗体。在两个研究组中,IHA滴度的频率分布曲线均为单峰。基于这些发现,得出结论:清迈的弓形虫传播程度较低。