9-3 病毒序列 英

9-3 in 1979 we declared smallpox thing ofthe past and in 2000 we declared victory against polio. These are all due tovaccine development. But the development of vaccine is like the development of thenew drug, it takes a long time and it goes through a certain procedure.

this was introduced partly by vice ministerXu and deputy commissioner Chen. in this process. First we need to identify theeffective constructs for vaccine

for example we need the suitable virusstrain to be the candidate of the vaccine. Not all of virus strains can be suitable.Sometimes we need to find the key proteins or genetic sequencing in the virus.

1979年，我们宣布天花已成为历史，2000年，我们宣布战胜小儿麻痹症。这些都是由于疫苗开发的功劳。疫苗的开发就像新药的开发一样，需要很长的时间，并且要经过一定的流程。

这部分是由徐副部长和陈副局长介绍的。在这个过程中。首先，我们需要确定疫苗的有效构造

例如，我们需要合适的病毒株作为疫苗的候选。并非所有病毒株都适用。有时我们需要找到病毒中的关键蛋白或基因序列。