| 1. | Live virus vaccines have a long and effective history
活病毒疫苗有效时间长。 |
| 2. | " there was no evidence of live virus from the collected swabs , " he said
Drfeldmann补充说：在抽取的样本中并没有证据显示有存活的病毒。 |
| 3. | This vaccine is based on decades - old technology and uses a live virus , called vaccinia , which is related to smallpox
这种疫苗是基于数十年前的老工艺和一种活病毒即牛痘病毒研制而成的。 |
| 4. | This means that recently vaccinated people excrete live virus particles from the vaccine ; but it is a less - dangerous strain of the virus
这意味着，最近接种的这批人排出了源自疫苗的危险性低的活病毒。 |
| 5. | The oral vaccine works because the ingestion of live virus mimics the natural process of infection , encouraging the production of antibodies in the gut
口服疫苗能够发挥效力是因为活病毒在机体吞入后可模拟天然感染过程，同时刺激消化道产生抗体。 |
| 6. | In fact , one of the few effective vaccines against any herpes strain - - the chickenpox / shingles ( herpes zoster ) shot - - was developed from live virus back in the 1960s
事实上，少数几种针对任一疱疹株有效的疫苗（水痘/带状疱疹疫苗）是十九世纪六十年代由活病毒衍化而来。 |
| 7. | A vaccine made by splicing chimp and human antibodies was both safer and more effective than the current vaccine , which uses a live virus and has a high rate of side effects , the researchers reported
及人类抗体结合而成的疫苗更安全更有效。目前使用的天花疫苗是由一种活病毒制成的，具有很大的副作用。 |
