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

这显然是一个大问题。以及再感染的风险大吗？

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

实际上，反复的感染循环才是造成最大伤害的原因。

That reduced chances of reinfection by about 80 percent.

这使得再感染的几率降 80%。

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

或者人们是否更容易再次感染 XBB？

This raises the risk of reinfection, a World Health Organization group warned in October—though the group said at the time that XBB does not appear to cause significantly more severe disease than previous strains.

世界卫生组织小组在10月警告，这增加再次感染的风险，尽管该小组当时表示，以前的毒株相比，XBB似乎并没有引起明显更严重的疾病。

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，如果你感染过新冠或最近接种加强针，可以肯你有一抵抗力防御再感染，尤其是防御重症。

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。这就是戴口罩的理由。

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%的风险会再次感染奥密克戎。

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。

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。

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，只有少数被证实再次感染。

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

美国研究人员报告该国首例冠状病毒确诊病例的患者再次感染。

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再感染风险有点难。

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

对比感染过旧变异株的人，感染过初代奥密克戎变异株 BA.1 的人，被新奥密克戎新亚株感染的几率更高。

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再感染 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%。

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

这只是些传言吗，还是随着 BA. 5 再感染现在的确更常见？

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

今天，我们要讨论对于 BA. 5 再感染的解。

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.

我们看到再感染 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。

When those antibodies are present, that will protect against reinfection.

当这些抗体存在时，它们将防止再次感染。

And even years later you could have a reinfection years later and again we have so much of those memory cells after two infections that you're not even going to feel getting that cold.

即使多年后再次感染，由于经过两次感染后体内已积累大量记忆细胞，你甚至都不会察觉到感冒的发生。