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- 利用减毒伤寒菌为载体构建稳定的三价抗原菌株Establishment of the stable delivery foreign antigens with double aro attentuated salmonlla typhi as carrier
- 大量证据表明,候鸟可将低致病性病毒传播给鸡群,然后低致病性病毒突变产生高致病性形式。Considerable circumstantial evidence suggests that migratory birds can introduce low pathogenic H5 and H7 viruses to poultry flocks, which then mutate to the highly pathogenic form.
- 猪乙型脑炎减毒活疫苗毒株的选育研究Selection of Attenuated Live-Vaccine Virus Strain of Japanese B. Encephalitis
- 毒poison
- 中草药保健香烟的减毒及抗突变作用初步研究The Toxicity Attenuation and Antimutagenic Effect of Health- preserving Cigarettes Made From Chinese Herbal Medicine
- 人工突变株artificial mutant
- 颠换突变株transversional mutant
- 减毒增效Toxicity reducing and efficacy enhancing
- 条件突变株conditional mutant
- 增效减毒Reducing toxicity and enhancing effects
- 病毒突变株.a mutant strain of a virus
- 减毒沙门氏菌attenuated Salmonella
- dps突变株dps-mutant
- 乙脑减毒活疫苗JEV SA14-14-2
- λ突变株λ-mutant
- 减毒伤寒沙门氏菌attenuated salmonella typhimunum
- nit突变株nit mutants
- 冻干乙脑减毒活疫苗保护剂的筛选Screening of Protective Agent of Freeze-dried Live Attenuated JE Vaccine
- 复突变株revertant
- 冻干甲型肝炎减毒活疫苗稳定性研究Stability of Freeze-dry Live Attenuated Hepatitis A Vaccine