| 1. | There are also some virus strains .
此外还有一些病毒品种。 |
| 2. | New variants of some plant viruses have been produced artificially in the laboratory by treating pure virus strains with mutagens .
用亚硝酸之类的诱变处理纯病毒株系，能在实验室内人为地使有些植物病毒产生新变种。 |
| 3. | Comparison of the antigenicity of hfrs virus strain ps - 6 and
1株抗原性的比较研究 |
| 4. | Evaluation of maize germplasm for resistance to maize dwarf mosaic virus strain b
玉米矮花叶病毒抗性资源鉴定的研究 |
| 5. | Cloning and sequence analysis of full - length segment a of an infectious bursal disease virus strain
鸡传染性法氏囊病病毒的反向遗传研究 |
| 6. | Immunity of live attenuated japanese encephalitis vaccine to differentwild je virus strains
流行性乙型脑炎减毒活疫苗国内外不同野毒株的免疫性 |
| 7. | An investigation on the afp cases with polio vaccine related virus strains isolated in hangzhou
杭州市急性弛缓性麻痹病例检出疫苗相关株病毒的调查分析 |
| 8. | If a new pandemic virus strain emerges however , it could be 6 - 9 months before a vaccine would be available in sufficient amounts
如果新的流感大流行形成，大概需要6 - 9个月的时间来生产足够的疫苗。 |
| 9. | Tests by local center for disease control and prevention ( cdc ) on may 18 show that he had been infected with bird flu virus strain h5n1
五月十八日当地疾病防控中心的检查结果表明，他已感染了h5n1禽流感病毒。 |
| 10. | The immunity built up from having influenza caused by one virus strain does not always provide protection when a new strain is circulating
患上某种病毒菌株所致流感而产生的免疫力，未必足以抵御当时流行的新菌株以及 |
