Again, that's obviously a big question and how about the risk of reinfection.

这显然是一个问题。以及再感染的风险吗？

And it's actually repeated cycles of reinfection that can cause the most damage.

实际上，反复的感染循环才是造成最的原因。

Researchers in the United States have reported the country's first confirmed case of coronavirus reinfection.

美国研究人员报告了该国首冠状病毒确诊病的患者再次感染。

There have been more than 37 million cases of coronavirus and only a handful of proven reinfections.

目前有超过3700万冠状病毒感染病，只有被证实再次感染。

Some may have had undetected mild or asymptomatic reinfections.

有些人或许是未检测出的轻症或无症状再感染。

Their key conclusion is that from this study of monkeys, reinfection could not occur if the monkeys had neutralizing antibody.

这项研究得出的关键结论是，如果猴子体内有中和抗体，再次感染就可能不会发生。

The World Health Organization said on Saturday there is no evidence that people who have recovered from COVID-19 are protected against reinfection.

世界卫生组织周六表示，没有证据表明新冠肺炎康复的人不会再次感染。

Studies by Discovery Health, South Africa's largest insurer, showed that people who contracted the Delta variant faced a 40 percent risk of reinfection with Omicron.

南非最的保险公司 Discovery Health 的研究显示，接触过德尔塔的人有40%的风险会再次感染奥密克戎。

When you talk about reinfection, and you don't keep in the concept of variants, that's an entirely different ball game. That's a good reason for a mask.

当出现二次感染时，如果你还没有“变异”这样的概念，那就完全是另一回事了。这就是戴口罩的理由。