| 1. | Vaccines also induce cellmediated immunity .
疫苗也引起细胞介导免疫。 |
| 2. | This vaccine will give you immunity for two years .
接种这种疫苗可有两年的免疫力。 |
| 3. | Egg-grown vaccines should be avoided in egg-sensitive patients .
鸡蛋过敏的病人应避免用鸡蛋培育的疫苗。 |
| 4. | Finding a vaccine for plasmodium has been an elusive goal .
寻找防治疟原虫的疫苗，一直是个难于达到的目标。 |
| 5. | We hope then to use the antibody as a vaccine against this blocking action .
我们希望以后能将这种抗体作为对抗这种阻滞作用的疫苗。 |
| 6. | The infant receives three injections of pertussis vaccine at one-month intervals .
婴儿以一个月为间隔，接受三次百日咳疫苗的注射。 |
| 7. | Eighty percent protection was afforded with one dose of vaccine and 90 percent with 2 doses .
一次注射疫苗提供80保护，两次注射则达90。 |
| 8. | The extra step would increase the margin of safety by further purifying the vaccine .
这一步骤将使疫苗更加纯净，从而使它的安全系数得到提高。 |
| 9. | Scientists worry about vaccines that depend on antigens collected from the serum of carriers .
科学家们对依靠从带病者血清中提取的抗原作为疫苗很不放心。 |
| 10. | Vaccines hold rich promise in preventing future hepatitis infections and subsequent liver cancers .
用疫苗来预防今后的肝炎及由它们引起的肝癌是大有希望的。 |
