| 1. | Study on infected plague animals in the plague natural focus of hebei province
河北省鼠疫自然疫源地自然感染鼠疫动物的研究 |
| 2. | People who have been naturally infected are immune to the disease for the rest of their lives
经自然感染甲型肝炎的人痊愈后会终生免疫。 |
| 3. | Optimization of foot - and - mouth disease vaccination protocols by surveillance of neutralization antibodies
应用口蹄疫病毒非结构蛋白抗体?别诊断动物自然感染及施打疫苗后之免疫反应。 |
| 4. | Surveillance of fmd virus nonstructural protein antibody in pig populations undertaking an eradication programme
应用口蹄疫病毒非结构蛋白抗体?别诊断动物自然感染及施打疫苗后之免疫反应。 |
| 5. | 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。 |
| 6. | To differentiate the animals immunized with rprv - ha and those naturally infected with prv or sfv in future , two differentiating diagnostic methods were developed based on recombinant viral antigens
为了区分此重组病毒疫苗免疫的动物和自然感染prv和siv的动物，本项研究利用基因工程抗原建立了两种分子鉴别诊断方法。 |
| 7. | The tuberculin reaction that affects naturally among them can keep all one ' s life positive even , and although the person that had not affected n / med tuberculosis bacterium experiments to also do not appear for many times positive response
其中自然感染的结核菌素反应甚至可保持终生阳性，而未感染过结核菌的人即使多次试验也不出现阳性反应。 |
| 8. | The purpose of this study is to construct a recombinant pseudorabies virus expressing ha gene of swine influenza virus and to develop specific diagnosis for differentiating the recombinant virus immunized animals and those naturally infected with prv or sfv
本试验的目的是以ge基因缺失的prv为载体构建可以表达sivha基因的重组病毒疫苗用于预防这两种病，同时，基于此重组病毒的特点，建立可以区分此重组病毒疫苗和prv及siv自然感染的鉴别诊断方法。 |
| 9. | When artificially and naturally infected , antibody produced is mainly igg , which with high content and long endurence . igg has multiactivities of antibacterial , antivirus , antiexotoxin and so on . it was proved that humoral immunity play important role against the aev - nh937 strain infection at the beginning of the disease
在人工自动免疫和自然感染后，机体所产生的抗体主要是igg ，它不仅含量多，而且持续时间长，是抗感染免疫的主力，具有抗菌、抗病毒和抗外毒素等多种活性。 |
| 10. | The specification is affected toward virus of liver having second already history or the convalescence after second liver virus is affected , had appeared protection antibody has immune power to second liver virus namely , do not need to medication , do not need vaccine of inject second liver , generally speaking , the protection antibody duration that this kind of natural infection forms is long , often be lifetime
说明既往有乙肝病毒感染史或者乙肝病毒感染后恢复期，已经出现保护性抗体即对乙肝病毒有免疫力，不需要药物治疗，不需要注射乙肝疫苗，一般来说，这种自然感染形成的保护性抗体持续时间长，往往是终生的。 |
