疫

The doctors are trying to stamp out the plague by using new method .

医生们在试着用新的方法消灭这种温疫。

Phytophthora root and stem rot, caused by Phytophthora sojae, is a prevalent and destructive disease in some soybean-growing regions. The causal fungus overwinters with oospores in soil and causes soybean root and stem rot next year.

在某些大豆生产区，由大豆疫霉菌引起的大豆根茎腐烂病是一种普遍流行的、极具破坏性的病害，病原真菌以卵孢子在土壤中越冬，在条件适宜时导致下一年大豆发生根茎腐烂。

The structural protein gene VP31 of Asia I foot and-mouth disease virus was expressed in the insect cells.

研究了口蹄疫病毒VP31基因在昆虫细胞中的表达。

Since 1997, the goose flocks in some regions of South and East China have experienced severe outbreaks of Newcastle disease virus infection. The results of the in vitro tests indicate that the goose isolates have stronger ability to induce syncytium formation, when compared to chicken and pigeon isolates.

1997年以来我国华南和华东部分地区发生了由新城疫病毒(Newcastle disease virus， NDV)导致的鹅的临诊疾病，而且发现鹅源NDV在体外具有比鸡源和鸽源毒株更强的致细胞融合的能力，这表明NDV的抗原可能发生了变异。

ABSTRACT Since 1990s, an average of about 540 thousand person-times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development.

元江流域九十年代以来平均每年大约有54万人次流动人口到海拔800米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的50倍、2.6倍、2.26倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

Since 1990s, an average of about 540 thousand person-times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development. The annual parasite incidence, slide positivity rate and parasite rate of transient population were 50 times, 2.6 times and 2.26 times as that of local residents respectively.

元江流域九十年代以来平均每年大约有54万人次流动人口到海拔800米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的50倍、2.6倍、2.26倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

Since 1990s, an average of about 540 thousand person times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development The annual parasite incidence, slide positivity rate and parasite rate of transient population were 50 times, 2 6 times and 2 26 times as that of local residents respectively Therefore, the river valley region has become a focus in transmitting malaria to both side of mountainous areas a...

元江流域九十年代以来平均每年大约有 54万人次流动人口到海拔 80 0米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的 50倍、2 。6倍、2 。2 6倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

The size of virus particle was 80-120nm by transmissive electron microscope.

分离病毒在鸡胚上可干扰新城疫病毒clone＿30株的增殖。

Second, foot-and-mouth disease, trichina, salmonella, antibiotic residue and dioxin become five focus questions that influence the pork trade.

二是口蹄疫、旋毛虫、沙门氏菌、抗菌素残留、二恶英是影响猪肉产品安全出口的5个焦点问题，也是SPS措施在各国猪肉进口标准中的主要体现。

Methods Genomic DNAs of 26 trypanosome isolates were amplified by a mobile genetic elements-PCR technique and cluster analysis was performed based on the molecular profiles with Neighbor-Joining method.

目的分析锥虫亚属布氏锥虫、伊氏锥虫和马媾疫锥虫3个种以及布氏锥虫：指名亚种、冈比亚亚种、罗得西亚3个亚种间的遗传变异与进化关系。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。