%0 Journal Article %T 重庆部分地区牛弓形虫血清流行病学调查及危险性因素分析<br>Sero-Epidemiological Investigation and Risk Factor Analysis of <i>Toxoplasma gondii</i> from Cattle in Chongqing %A 王芝英 %A 李楷 %A 孙莹莹 %A 李和贤 %A 杨浩钺 %A 董春霞 %A 凌洪权 %A 姚璐 %A 胡世君 %A 周作勇< %A br> %A WANG Zhi-ying %A LI Kai %A SUN Ying-ying %A LI He-xian %A YANG Hao-yue %A DONG Chun-xia %A LING Hong-quan %A YAO Lu %A HU Shi-jun %A ZHOU Zuo-yong %J 西南大学学报(自然科学版) %D 2018 %R 10.13718/j.cnki.xdzk.2018.05.002 %X 采用分析流行病学的“病例-对照研究”和弓形虫抗体ELISA检测方法，对重庆市牛弓形虫血清流行病学进行调查和危险性因素分析.从10个区县所采集的345份牛血清样本中，共检出弓形虫抗体阳性血清94份，平均阳性率为27.25%(94/345)，其中公牛和母牛弓形虫感染的阳性率分别为19.25%(36/187)，36.71% (58/158)；1岁以上的成年牛和小于1岁幼年牛弓形虫的阳性感染率分别为31.06%(82/264)，14.81%(12/81)；无犬猫牛场弓形虫的感染率为23.40%(33/141)，有犬猫牛弓形虫的感染率为29.90%(61/204).危险性因素分析显示，成年牛弓形虫感染率是幼年牛的2.59倍(<i>OR</i>=2.59，<i>X</i><sup>2</sup>=8.25，95% <i>CI</i>=1.33~1.5.04，<i>p</i>=0.004)，表明重庆地区年龄因素对牛弓形虫病流行有中等程度的关联；母牛弓形虫感染率是公牛感染率的2.43倍(<i>OR</i>=2.43，<i>X</i><sup>2</sup>=13.17，95% <i>CI</i>=1.50~3.96，<i>p</i>=0)，表明重庆地区性别因素对牛弓形虫病流行有中等程度的关联；有犬猫牛弓形虫的感染率是无犬猫的1.40倍(<i>OR</i>=1.40，<i>X</i><sup>2</sup>=1.77，95% <i>CI</i>=0.85~2.28，<i>p</i>=0.183)，表明重庆地区有无犬猫对牛弓形虫病流行有较弱的关联.<br>The objective of this work was to test sero-prevalence of <i>Toxoplasma gondii</i> from cattle in Chongqing. A total of 345 serum samples were obtained from 10 districts/counties of the city and tested for <i>T</i>. <i>gondii</i> antibody by ELISA, of which 94 were found to be positive for <i>T</i>. <i>gondii</i> antibody, the average positive rate being 27.25% (94/345). The positive rates of <i>T</i>. <i>gondii</i> infection in bulls and cows were 19.25% (36/187) and 36.71% (58/158), respectively. The positive rates of <i>T</i>. <i>gondii</i> infection in adult cattle (≥1-year-old) and calves (< 1-year-old) were 31.06% (82/264) and 14.81% (12/81), respectively. On cattle farms with dogs or cats, the infection rate was 29.90% (61/204), being higher than that on farms without dogs or cats 23.40% (33/141). Based on risk factor analysis, <i>T</i>. <i>gondii</i> sero-prevalence was found to be in moderate association with the age (<i>OR</i>=2.59, <i>X</i><sup>2</sup>=8.25, 95% <i>CI</i>=1.33-1.5.04)and the gender of the cattle (<i>OR</i>=2.43, <i>X</i><sup>2</sup>=13.17, 95% <i>CI</i>=1.50-3.96), and in weak association with the presence of cats or dogs (<i>OR</i>=1.40, <i>X</i><sup>2</sup>=1.77, 95% <i>CI</i>=0.85-2.28, <i>p</i>=0.183) %K 牛 %K 弓形虫 %K 血清学调查 %K 危险因素< %K br> %K cattle %K < %K i> %K Toxoplasma gondii< %K /i> %K sero-epidemiological investigation %K risk factor %U http://xbgjxt.swu.edu.cn/jsuns/html/jsuns/2018/5/201805002.htm