Oxford vaccine proves effective

牛津疫苗公布临床结果

The COVID-19 vaccine candidate from Oxford University and Astra-Zeneca is up to 90% effective at preventing infection, according to data from Phase 3 testing.

牛津大学与阿斯利康联合开发的新冠候选疫苗的三期试验数据显示，该疫苗有效性最高可达90%。

There were no severe reactions or hospitalizations across 24,000 study participants in the UK, Brazil and South Africa, Oxford said in a statement on Monday when it posted interim results from late-stage testing.

牛津大学在11月23日的一份声明中表示，三期试验的中期结果显示，英国、巴西和南非的2.4万名受试者中未报告严重副作用或因疫苗反应而入院的情况。

The treatment, which requires a two-dose regimen, provided differing levels of protection against the virus when the dosage was altered.

牛津大学表示，该疫苗分成两次接种，疫苗有效性依接种剂量多寡而有所不同。

The vaccine was 62 percent effective when given in two full doses, and 90 percent effective when a full dose followed a half dose.

若两次均以全剂量给药，则有效性为62%。如果首次使用半剂量、再进行第二次全剂量接种，则有效性可达90%。

When combining all preliminary results, the vaccine showed 70.4 percent efficacy, according to Oxford.

结合两种给药方案的初步数据后，该疫苗平均有效率为70.4%。