感染剂量

于病毒接种后72h测定NDVⅠ系的半数组织培养感染剂量（TCID50）和NDVⅣ系的血凝效价，以评价3种中药成分对NDV感染细胞的影响。

After NDV were inoculated for 72 h , the 50 % tissue culture infective dose ( TCID 50 ) of NDV ⅰ strain and hemagglutination titer of NDV ⅳ strain were determined to evaluate the effects of the three components on cellular infectivity of the virus .

在05×104～30×104个/只的感染范围内，实验鸡血浆亚硝酸盐水平随着感染剂量的增加而升高。

When infective dose ranged from 0 5 to 3 0 × 10 4 oocysts per chicken , level of NO 2 increased in a stepwise manner with increasing infective dose .

方法：乳鼠脑内接种半数感染剂量的CMV，运用光学显微镜和透射电镜观察苦参素对脑组织病理形态的影响。

Methods : CMV of TCID 50 was inoculated into the brain of the newborn mice , and the morphological change in the brain tissue infected by CMV was observed with light microscope and transmission electron microscope .

35日龄时，对A、B、C、D组的鸡以100倍法氏囊感染剂量的标准强毒株IBDVBC-6/85进行滴鼻。

At the age of 35 days chickens of 4 groups ( A , B , C and D ) were infected with the nose-drop route with standard challenge virulent strain of IBDV BC-6 / 85 at the dosage of 100 times as much as bursal infectious dose .

大肠杆菌O157∶H7是一种感染剂量小、危害性大的新型肠道致病菌，是当前食品卫生和安全、给水卫生及流行病学领域最重要的研究对象之一。

Escherichia coli O157 : H7 is a new intestines pathogen of causing serious foodborne illness and is viewed as a significant public health concern .. It has a very small infections dose and so it is vital to detect and eliminate this pathogen from food .

不同感染剂量组均发生死亡，死亡率分别为10%~30%和60%~90%。

Mortality of geese in all of the infected groups was 10 % - 30 % and 60 % - 90 % respectively .

同时进行兔结膜囊泪液膜病毒分离并计算病毒滴度半数组织细胞感染剂量（TCID50）。

Virus sheddings in the tear film and conjunctival sac were isolated and TCID 50 ( 50 % tissue culture infective doses ) were calculated .

用微载体培养法在搅拌瓶和生物反应罐中小规模培养麻疹病毒，以探索在可能实现的大规模工业化麻疹生产中不同感染剂量MultiplyofInfection（m.o.i）的麻疹病毒对病毒产量的影响。

Small Scale measles virus cultivation in Microcarrier grown cells was studied to investigate the effect of m. o. I on virus production at assumed industrial scale .

主要传播途径为粪口途径，由于感染剂量极低（10-100个菌），所以最长见的扩散形式是人与人之间的传播。

Shigella infection spreads by the fecal-oral route . Because of the low infectious dose ( 10 to 100 organisms ), person-to-person transmission probably is the most common .

调查期间的弧菌数量在对虾发病的感染剂量阈值范围之内，尚无弧菌病害发生的潜在危险。

The density of vibrios was within the range of control density of disease , implying no risk of disease for the mariculture of shrimp in these habitats in this survey .

感染剂量为4×10~5PIB/克饲料的LT（50）值分别为4.7168天和4.8083天。比较两种来源的BsNPV，其多角体的感染力无明显差异。

The LT_ ( 50 ) value for 4 × 10 ~ 5PIB / g of diet were 4.7168 days and 4.8085 days , No different in activity between the Nuclear Polyhedrosis Virus propagated in vitro and in vivo was detected .

头孢唑肟治疗重症肺部感染用药剂量和用药途径的探讨

The dosage and route of administration of ceftizoxime in severe pulmonary infection

结果：①LPS03mg/kg是引起亚临床感染的剂量；

Results : ( 1 ) LPS 0.03 mg / kg is the dosage which can lead to sub clinical infection .

结论本实验未发现小鼠能经胎传播日本血吸虫病，可能与不同动物种系及尾蚴感染的剂量有关。

Conclusion Congenital infection of S. japonicum does not occur at present experiment , which might be attributed to animal species and the dose of infection .

目的：观察不同日龄大鼠感染不同剂量内毒素对血气、血糖的影响。

Objective : To observe the effects of different doses of lipopolysaccharide ( LPS ) on the levels of blood gas and blood glucose in septic rats of different ages .

伯氏疟原虫感染小白鼠剂量的初步观察

Observation on the infectious dose of plasmodium Berghei in mice

瓣膜血管较少，因此抗感染需要大剂量抗生素。

Valves are relatively avascular , so high dose antibiotic therapy is needed to eradicate the infection .

根据个人暴露于疾病的途经，感染病毒的剂量和包括免疫状况的其他因素的不同，潜伏期将不同。

The incubation period can vary from one case to another according to the route by which the person was exposed , the dose of virus received , and other factors , including immune status .

禽流感潜伏期从几小时到几天不等，其长短与病毒的致病性、感染病毒的剂量、感染途径和被感染禽的品种有关。

Avian flu is preclinical differ to a few days from a few hours , way of the sex causing disease of its accident and virus , dosage that contracts virus , infection and be concerned by the breed of infection birds .

首次接受治疗的不同种族HCV感染患者对相同剂量干扰素的应答率不同

Racial differences in response rates to consensus interferon in HCV infected patients naive to previous therapy

方法：首先确定建立潜伏感染小鼠的HCMV剂量，再建立HCMV潜伏感染小鼠的模型。

Methods : Firstly , to determine the dose of HCMV resulting in latent infection in mice , and then establish a model for HCMV latency in mice .

用于预防感染，临床推荐剂量为200mg/kg饲料拌料，连续饲喂15d左右。

The recommend dosage for clinical infection prevention 200mg / kg feed and supplementation period is around 15 days .

用Dot-ELISA观察人工感染2株不同剂量的弓形虫家兔血清循环抗原（CAg）动态。

The dynamic changes of circulating antigens ( CAg ) in sera from rabbits infected with different intensity of Toxoplasma gondii RH and PP strains were observed by Dot-ELISA .

根据研究结果，左氟沙星片剂用于临床治疗敏感菌所致各种感染时其日剂量约为氧氟沙星的半量。

It is suggested from these results that the dosage of levofloxacin is half of that of ofloxacin in treatment of clinical infections .

目的观察高山型血吸虫疫区疫水暴露与血吸虫感染率之间的剂量-反应关系，评价3项常用疫水暴露指标的优缺点和适用性。

Objective To study dose-response relationship for endemic water exposure and prevalence of schistosomiasis of mountain type , in order to evaluate the advantages and disadvantages and applicability of the 3 indexes of endemic water exposure .

本文通过大量人工复制小白鼠弓形虫病，系统地观察了腹水内荷虫量变化，确定腹腔接种650&1100个滋养体／只是人工感染小白鼠弓形虫病的适宜感染剂量。

The paper , through artificially duplication of toxoplasmosis Disease of mouse in a great quantity , systematically introduced the variation of infection dose of toxoplasmosis in ascites , determined that the suitable infection dose of toxoplasmosis was 650-1100 deutoplasms per mouse .

幽门螺杆菌动物感染模型的建立及较适感染剂量的确定

Establishment of Helicobacter pylori infection mouse model and determinating of the optimun infection dosage

目的建立兔组织笼感染模型并观察左氧氟沙星对金黄色葡萄球菌感染的剂量反应关系。

AIM : To develop tissue cage infection model and study the efficacy of levofloxacin in treatment of staphylococcus aureus infection .

结论仔兔日本血吸虫经胎盘感染率和感染强度与母兔怀孕不同时期，胚胎发育不同程度，尾蚴感染剂量等众多因素有关；

Conclusion The congenital transmission of S. japonicum infection in rabbits happens . The infection rate of rabbit kittens might be related to different pregnancy of mother rabbits , embryo development , infection dose of cercariae , etc.

结果：UU感染可明显促进Leydig细胞分泌IL-1和TGF-β1的能力，且与UU的感染剂量有关。

Results : The IL-1 activity and TGF - β 1 level were significantly increased , which secreted by rat Leydig cells in the UU infection .