viruses vaccine的用法和样例：
例句
- Betting the intussusception problem could be overcome, two vaccine makers renewed their interest in rotavirus.
有两家疫苗制造厂确信肠套叠的问题可以克服，于是重拾对轮状病毒疫苗的兴趣。 - This increased the number of targets available to vaccine developers and led directly to the development of Novartis's new meningitis-B vaccine, for example.
这为疫苗研发者提供了更多免疫靶点，从而促使其开发出更多疫苗品种，比如诺华制药新推出的乙型脑膜炎病毒疫苗。
