成为病原的

In 2006, more than 10 provinces of China have experienced an epizootic outbreak of pig diseases characterized by high fever, reddened skin and high morbidity and mortality.

猪生殖与呼吸综合征（Porcine Reproductive and Respiratory Syndrome， PRRS）是一种以妊娠母猪的繁殖障碍和仔猪的呼吸道疾病为特征的病毒性传染病，该病的病原，PRRSV，已成为危害全球养猪业的主要病原。2006年，国内十几个省市内爆发了由以发热、皮肤发红、高致病率和高死亡率为主要特征的疑似猪生殖与呼吸综合征的传染病。

To explore the influence of reticuloendotheliosis virus and subgroup J avian leucosis virus infection on chicken cellular immunity,the mitogenic response to ConA of blood and spleen lymphocytes tested and analyzed with 3H-thymidine(3H-TdR) incorporation assay at different intervals after infection or co-infection of single or both viruses.

自1974年分离出网状内皮增生症病毒[1]和1991年分离出禽白血病病毒J亚群[2]以来，在我国先后分离出不同毒株的REV和ALV-J，并开展了病原学、流行病学、致病性和免疫反应以及预防诊断等方面的研究，揭示出不同的致病性，并且确认它们都可造成感染鸡群免疫抑制，成为一些

Air-conditioning also may become the sensitization pathogene occurrence source per se sometimes , melt a ware if air-conditioning is wet having a microorganism to contaminate much, that microorganism and some matter in spray may be sensitization aetiology arouses the asthma paroxysm , makes original asthma patient state of illness increase weight.

空调本身有时也会成为致敏病原体的发生源，如空调湿化器多有微生物污染，水雾中的微生物和某些物质可作为致敏病原引起哮喘发作，使原有哮喘病人病情加重。

In addition to air some of the Central Plains and some micro-organisms (non-pathogenic micro-organisms saprophytic, Bacillus, is Achromobacter, as well as a small number of Streptococcus actinomycetes, yeast and fungi, and so on), there may be from a human body More pathogenic micro-organisms such as Mycobacterium tuberculosis, diphtheria bacteria, Streptococcus, Staphylococcus aureus, meningococcal, influenza virus, measles virus, etc.

除大气中原有的一些微生物（非致病性的腐生微生物、芽胞杆菌属、无色杆菌属、细球菌属以及一些放线菌、酵母菌和真菌等）外，也可能存在来自人体的某些病原微生物（如结核杆菌、白喉杆菌、溶血性链球菌、金黄色葡萄球菌、脑膜炎球菌、感冒病毒、麻疹病毒等）成为空气传播疾病的病原。

Parasitica system has evolved into a very useful model for understanding the interaction between a virus and its host and for dissecting the virulence regulation of a pathogenic fungus.

低毒病毒／板栗疫病菌系统已经成为研究病毒与宿主相互作用以及病原真菌致病机理的很好的模式系统。

So the different mucosal linings are the entry points for most infectious agents. And this is why.

因此，不同的黏膜内层便成为大部分感染性病原的进入点。

Trap crops (e.g. taro and castor) had good attracting effect on S. litura adults. Thus we suggest that an effective ecological control combining crop trap with releasing natural enemy or pathogen will be sustainable for the control of S. litura in the future.

香芋和蓖麻等诱集作物对斜纹夜蛾有较好的诱集效果，如果能将作物诱集和释放天敌昆虫或病原微生物制剂结合，使之成为一套有效的生态控制体系，将可现实斜纹夜蛾种群的持续控制。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。