传染性的

Infectious bovine rhinotracheitis, which was caused by the Bovine herpersvirus-1(BHV-1), was acute, pyrexic and contagious, and incurred great economic loss to the global cattle husbandry. IBR was listed as the B disease by OIE, and was the main object quarantined in the international trade and the animals imported to China.

牛传染性鼻气管炎(infectious bovine rhinotracheitis，IBR)是由I型牛疱疹病毒(bobine herpesivirus-1，BHV-1)引起牛的一种以上呼吸道炎症为主的急性、热性、接触性传染病，给全球养牛业造成了巨大的经济损失，被国际兽医局列为B类疾病，属我国进境动物和国际动物贸易重点检疫的对象。

By analyzing the outbreak in Mexico, early data on international spread, and viral genetic diversity, we make an early assessment of transmissibility and severity.

通过分析流感在墨西哥的爆发、国际蔓延的早期数据，及病毒的遗传多样性，我们做了传染性和严重性的早期评价。

But that is no longer the case as highly effective methods have since been developed to determine whether blood is contaminated with various types of hepatitis, the HIV virus, and other transmittable diseases. Under present screening technology, a market in blood yields much more blood, and with enough diligence its quality can be maintained at a high level.

但是现在已经不再是这样的情形，确定血液是否含有不同类型肝炎、HIV病毒与其他传染性疾病的高效方法已经得到发展，在现有的检测技术下，血液市场可以产生更多的血液，并且通过努力可以确保质量维持在高水平。

The causative agent of the disease is an Corona virus, infectious bronchitis virus IBV）, classified as Corona .Present vaccines for IB are all modified live viruses derived either by sequential passage embrocated chicken eggs. As Immunogenicity of IBV is usually correlated with its virulence, almost all modified live IB vaccines remained insufficient attenuation and have shown a variety of side effects including spread of vaccine virus to no vaccinates, occurrence of long term "carrier" birds, and increasing virulence during in vivo passage.

目前国内外预防本病所用的疫苗大多数是弱毒疫苗，但现用弱毒疫苗都存在以下缺点：（1）与IBV强毒一样，其弱毒疫苗株也能引起潜伏感染，潜伏感染的鸡将终生带毒；（2）疫苗病毒可以由接种鸡传染给非接种鸡，在鸡群之间传播过程中毒力会返强，从而成为新的感染源；（3）传染性支气管炎病毒极易发生变异，且易成为病毒重组的供体和受体，给使用IB传统疫苗预防和根除IB带来极大的困难。

HBsAg has been found in all body secretions and excretions.

病毒的传染性会被肠内黏膜分泌或细菌分泌的酶破坏，没有令人信服的迹象表明空气流动传播的发生和粪便作为传染源。

In exceptional circumstances, a dream to the delicious food, will stimulate saliva secretion, saliva secretion increased, it will lead to drooling; improper sleeping positions sometimes lead to the phenomenon of flow of saliva; Some people sleep regularly teeth and stimulate the brain nerve center, to promote saliva secretion, so that flow of saliva; some people love spicy food thing, or, tobacco, liquor, so that night, dry mouth, increased saliva secretion; sleep, mouth breathing tends to dry mouth, thus contributing to an increase in saliva secretion ; In addition, some diseases, such as infectious stomatitis, toothache, mercury, potassium iodide poisoning, but also can stimulate an increase in saliva secretion, causing sleep drool.

是对美食的梦想，会刺激唾液分泌，唾液分泌增加，会导致流口水，有时睡觉姿势不当导致的唾液流现象，有些人睡眠定期牙齿和刺激大脑神经中枢，促进唾液分泌，使唾液流动，有些人喜欢吃辣的东西，或者，烟，酒，所以这天晚上，口干，唾液分泌增加，睡眠，口呼吸往往口干，从而促进在唾液分泌增加，此外，如传染性口腔炎，牙痛，汞，碘化钾中毒的一些疾病，而且还可以刺激唾液分泌增加，造成睡眠流口水。

In addition to the degenerative and necrotic changes of the neurons, reaction of the glial cells, petechia haemorrhages of the parenchyma of the brain as well as toxic dystrophic-like changes in the liver reported by the previous workers, a definite cellular infiltration in the Wirchow-Robin space and the pia-arach- noid was observed.

这些结果表明，新疆病例是伴有肝脏实质性变——坏死——溶解的脑膜脑脊髓炎的疾病，不是前人所怀疑的肝脑病或肝炎或其他中毒性疾病，在已知的疾病中与苏联传染性脑脊髓炎的病变比较相似。

This study considers the effects of ventilation system using the residential facilities to the transmission mechanism of indoor aerosol in the residential quarantine period space for infective diseases. This study focuses on the effect of the design of ventilation system on the internal flow field and the removal of contaminant pollution. A computational fluid dynamics software-FLUENT 6.2 is employed to simulate the internal airflow field of the residential quarantine period space. The Carbon dioxide (CO2) is adopted as the index of contaminant source. Three layouts of ventilation system are simulated and the airspeed field, the temperature distribution, and the contaminant distribution are analyzed to find the best ventilation system for the residential quarantine period space.

本研究考虑传染性疾病在居家隔离空间使用一般家用环境控制设备时对室内的气悬感染会有何影响，本文主要分析不同通风设计时对居家隔离空间内部气流之影响，并将国内外现有的规范设计方式做一系列之比较以供参考，并以商用套装软体FLUENT6.2分析居家隔离空间内部流场分布情形，模拟中以二氧化碳（CO2）作为病患所呼出含有病菌空气的指标，模拟案例分为三种主要的通风模式，并分析速度、温度与污染物浓度分布情形，以得到最佳的居家隔离空间通风配置方式。

Looking at it from an all purpose population approach , arachnophobia is recognised to be a cultural fear that has been transmitted down to our society for hundreds of years from our ancestors because spiders were once alleged to be the origin of the contagious bubonic plague .

是认可了文化的恐惧已转交到我们的社会，数百年来，从我们的祖先，因为蜘蛛一度被指称是原产地的鼠疫传染性。

"Because of the powerful genetic effects on incubation periods in laboratory animals, vCJD patients identified could represent a distinct genetic subpopulation with unusually short incubation periods for BSE prions, with vCJD so far occurring predominantly in those individuals with short incubation time alleles at these multiple genetic loci, in addition to having the homozygous PRNP genotype of codon 129 methionine," they write.

因为动物实验表现出基因对潜伏期的强力影响，鉴定vCJD病患表现出清楚的基因次族群和BSE传染性蛋白质的不寻常短潜伏期；vCJD病患目前显著地发生在短潜伏期对偶基因者，密码子129蛋氨酸的PRNP 基因是同型合子。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。