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

这显然一个大问题。以及感染的风险大吗？

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

实际上，反复的感染循环才造成最大伤害的原因。

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例冠状病毒确诊病例的患者次感染。

That reduced chances of reinfection by about 80 percent.

这使得感染的几率降低了约 80%。

Today, we're going to discuss what we really know about BA. 5 reinfection…

今天，我们要讨对于 BA. 5 感染的了解。

Or whether people will be more susceptible to reinfection with XBB?

或者人们否更容易次感染 XBB？

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

目前有超过3700万例冠状病毒感染病例，只有少数被证实次感染。

Are those just stories, or is reinfection really more common now, with the BA. 5 variant running around?

这只些传言吗，还随着 BA. 5 感染现在的确更常见了？

So it's a bit hard to compare the risk of reinfection with different variants.

因此比较不同变异株的感染风险有点难。

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，果猴子体内有中和抗体，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次感染。

Real-world data on reinfection rates will also give a clearer indication on the extent of any change in immunity.

关于感染率的真实世界数据也将更清楚地表明免疫力变化的程度。

But Omicron causes the full spectrum of disease, everything from asymptomatic infection or reinfection, as well as severe disease and death.

但奥密克戎会导致整个疾病的谱系，从无症状感染或次感染，到严重疾病乃至死亡。

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.

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

Those people had significantly more protection against reinfection with BA. 4 or 5: 76 percent against symptomatic infection, and nearly 80 percent against all infection.

感染过奥密克戎的防止感染 BA. 4 或 BA. 5 的抵抗力大大增强：对有症状感染的防护率为 76%，而对所有新冠变异感染的防护率接近 80%。

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，果你还没有“变异”这样的概念，那就完全另一回事了。这就戴口罩的理由。

Some may have had undetected mild or asymptomatic reinfections.

有些人或许未检测出的轻症或无症状感染。

But in general, if you've had COVID or gotten boosted recently, it is safe to say you probably have some protection against reinfection, and especially against severe outcomes.

但总体来看，果你感染过新冠或最近接种了加强针，可以肯定地说你有一定抵抗力防御感染，尤其防御重症。

The reason we're seeing more reinfections with BA. 5 is partly due to its immune evasiveness — mutations in its spike protein that help it sidestep antibodies to prior variants.

我们看到感染 BA. 5 病例增多，部分归因于其免疫逃避——刺突蛋白内的变异帮助病毒回避先前变异的抗体。

People who had the original Omicron variant, BA.1, seem to have a higher rate of reinfection with these newer Omicron subvariants, compared with those infected with previous variants.

与感染先前变体的人相比，拥有原始 Omicron 变体 BA.1 的人似乎对这些较新的 Omicron 亚变体有更高的感染率。