attenuated virus的用法和樣例：
例句
- GlaxoSmithKline dusted off its program and pressed forward with a new monovalent vaccine derived entirely from a single attenuated human strain.
葛蘭素史克取出塵封許久的計畫，以單一減弱型的人類輪狀病毒品系製成全新的單價疫苗，重新投入戰場。 - The test gave consistently positive results with virulent virus.
用強毒病毒時，此試驗恆定地呈現陽性結果。
