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- The vaccine “mimics” a natural infection to elicit a strong immune response, but causes no disease. 疫苗模仿自然的感染引发强大的免疫反应而不会造成疾病。
- This is the first report of the presence of FMDV in bull semen due to natural infection in China. 这也是我国首次证实自然感染牛的精液被口蹄疫病毒污染。
- Motheds The animals in Paragonimus endemic area were insected to test the status of natural infection. 方法在流行区剖解不同动物,检查自然感染情况,观察实验室感染动物体内虫体发育情况及分布。
- Sabin believed that live vaccines, which can replicate somewhat but are too weak to trigger disease, best mimic the protection acquired through natural infection. 沙宾认为，活性不足以致病、但仍可复制的活病毒疫苗，最能够模拟因自然感染所产生的保护作用。
- The natural infection rates of domestic cat and dog were 56.25%(18/32) and 14.29%(1/7),respectively. Adult worms were also detected from dogs. 家猫、家犬的自然感染率分别为 5 6 2 5%25 ( 18 3 2 )和 14 2 9%25 ( 1 7) ,并从家犬的肺中检出成虫。
- The natural infection rates of A. cantonensis, Strobilocercas fasciolaris, C. hepatica and T. spiralis are 17.37%, 16.95%, 1.27% and 0 respectively. 不同鼠种中褐家鼠的寄生虫感染率最高(66.;00%25)，感染的寄生虫种数亦最多，黄胸鼠次之(35
- Objective: To study the characterized distribution of Aedesalbopictus and its natural infection of arboviruses in Yunnan province. 目的：阐明白纹伊蚊分布特点，掌握其自然感染虫媒病毒情况。
- Objective: To study the characterized distribution of Aedes albopictus and it s natural infection of arboviruses in Yunnan province. 目的:阐明白纹伊蚊分布特点,掌握其自然感染虫媒病毒情况。
- Objective:To study the mosquito natural infection with Japanese encephalitis (JE) virus and evaluation on their vector status. 目的:阐明蚊虫自然感染乙型脑炎病毒情况,评价各蚊种的媒介地位。
- Objective To investigate whether there are plague focus of natural infection in Seda County,so as to provide basis for plague prevention and control. 目的调查色达县是否存在鼠疫自然疫源地,为鼠疫防制提供依据。
- Furthermore the natural infection rates of A. cantonensis in rats captured from the wild is significantly higher than that from the domicile. 带状链尾蚴在野栖与家栖鼠中均可找到，只是在野栖鼠中感染率较高；
- The morphology,species frequency,spore density and natural infection rate of the VAM fungi in tea gardens were studied in the southern parts of Henan province. 对豫南茶园VA菌根真菌形态、种类、种群频度、孢子密度及自然侵染率进行观察与测定。
- Results Among the 6 species of snail samples, Angiostrongylus cantonensis was only found in Pila gigas and Babyloni areolata with the natural infection... 结论深圳市食用螺流通市场存在着广州管圆线虫的流行因素,中间宿主以福寿螺和东风螺为主。
- Objective To study types of final hosts and natural infection condition of mice of Angiostrongylus cantonensis in the first dead case district in mainland China. 目的了解中国大陆广州管圆线虫病首例死亡病区终宿主种类及鼠类自然感染情况。方法采用药械诱捕鼠类,解剖心肺,收集统计虫体。
- The morphology, species frequency, spore density and natural infection rate of the VAM fungi in tea gardens were studied in the southern parts of Henan province. 对豫南茶园VA菌根真菌形态、种类、种群频度、孢子密度及自然侵染率进行观察与测定。
- Methods:RT-nested PCR and direct immunofluorescence assay(FA) were adopted to determine HFRS antigens in the lung tissues of captured rats by surveillance on natural infection of rodents with hantavirus in Shenzhen city in 2005,respectively. 方法:用RT-nested-PCR和直接免疫荧光法(direct immunofluorescence,FA)分别检测深圳市2005年肾综合征出血热宿主动物监测中捕获的鼠类中HV的感染情况。
- Abstract: 37 cultivars of V.vinifera and their hybrids were used for studying their resistance to anthracnose disease(Spheceloma ampelinum do Bary) by natural infection in field conditions. 文摘:采用田间自然鉴定方法，研究了37个栽培品种(欧亚种及其杂种)对黑痘病的抗性。结果表明，欧亚种葡萄及其杂种对黑痘病抗性存在很大差异。
- Lyme disease (LD) is a naturally infection caused by the tick-borne spirochete Borrelia burgdorferi and affects both human and animals. 目的莱姆病是由蜱传伯氏疏螺旋体引起的自然疫源性疾病,也是人兽共患病。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- Because of limitations of in vitro replication systems, studies of HCV pathogenesis have been limited to observation of natural infection of humans and experimental infection of chimpanzees. 由于受到缺乏体外复制系统的限制，HCV发病机理的研究还局限于HCV感染自然史的观察和黑猩猩的实验感染。
