Two studies from Britain published Wednesday showed COVID infections with Omicron are less likely to result in hospitalization compared to the Delta variant, the latest research confirming a trend first identified in South Africa.
来自英国并于周三发表的两项研究表明，与德尔塔变异毒株相比，感染奥密克戎的新冠病情所导致的住院可能性更小。这一最新的研究证实了最先在南非发现的这一趋势。
The preliminary studies – one paper from Scotland and the other from England – were cautiously welcomed by experts, who nonetheless stressed that any advantage in milder outcomes could still be negated by the new strain’s heightened infectiousness, which may still lead to more overall severe cases.
初步研究-一篇论文来自苏格兰，另一篇来自英格兰，受到了专家们的审慎认可。专家们强调表示，病情更轻微方面的任何优势都会由于新毒株传染性更强而黯然失色，而更强的传染性仍会导致更多严重的病例。
“We’re saying that this is qualified good news – qualified because these are early observations, they are statistically significant, and we are showing a reduced risk of hospitalizations,” Jim McMenamin, a co-author of the Scottish research, told reporters on a call.
Jim McMenamina，苏格兰研究报告的共同作者在电话采访中表示：“我们所表达的是，这是一个合格的好消息-之所以说合格是因为这些消息来自于初步观察并且具有统计学意义。我们的研究表明，感染奥密克戎的病例住院风险更低。”
The Scottish paper examined Covid cases recorded in November and December, and grouped them by cases caused by Delta against those caused by Omicron.
苏格兰的论文对11月和12月所记录的新冠病例进行检查并按照德尔塔毒株和奥密克戎毒株将其进行归类。
It found that “Omicron is associated with a two-thirds reduction in the risk of Covid-19 hospitalization when compared to Delta,” while also showing that a booster vaccine offered substantial additional protection against symptomatic infection.
研究发现，“与德尔塔相比，奥密克戎所导致的住院风险减少了三分之二”，但是研究也表明增强疫苗为症状性感染提供了有利的额外保护。
The study was small and there were no people under 60 hospitalized at the time, but the authors said they had adjusted for these limitations using statistical methods.
研究规模不大，而且当时住院的患者都不小于60岁。但是作者表示，他们通过统计方法来改善这些局限性。
The second paper, from England, found there was a 20-25 percent reduction in any attendance at hospital for Omicron compared to Delta, and a 40-45 percent reduction in hospitalizations lasting one night or longer, in other words “admissions.”
第二篇论文来自英格兰。该论文发现，与德尔塔相比，感染奥密克戎新冠的任何类型的住院率都减少了20-25%，而住院时间为1晚或更长的比率减少了40-45%，也就是入院情况。
The Scottish study only looked at admissions so this may account for part of the difference seen.
苏格兰的研究仅查看了入院情况，因此这可能解释了部分差异性。
Azra Ghani of the Imperial College London, who co-authored the England study, said in a statement: “Whilst the reduced risk of hospitalization with the Omicron variant is reassuring, the risk of infection remains extremely high.
伦敦帝国理工学院的Azra Ghani，同时也是英格兰研究论文的联合作者在声明中表示：“尽管感染奥密克戎病毒后的住院风险有所减少这一事实令人信服，但是感染的风险还是非常高的。”
“With the addition of the booster dose, vaccines continue to offer the best protection against infection and hospitalization.”
“通过接种加强针，疫苗将继续为接种者提供最佳保护并使接种者避免感染和住院风险。”
Neither of the studies has been peer reviewed, but they add to growing evidence about disease outcomes with Omicron.
这两项研究都未经过同行评议，但是两项研究都补充了有关奥密克戎患病情况的证据。
It remains unclear whether the decreased rate of severe cases seen with Omicron is because of characteristics of the variant, or whether it appears milder because it is coming up against populations with greater immunity from prior infection and from vaccination.
奥密克戎所导致的重症病例减少是否是由于病毒本身的特点，还是由于病毒面对的是由于之前感染和疫苗接种而免疫力更强的人群，具体原因尚不清楚。
Penny Ward, a professor of pharmaceutical medicine at King’s College London, who was not involved in the research, said: “This news does not detract from the extraordinary spread of this variant across the population, and the fact that even a small proportion of people needing hospital care for COVID may become a very large number indeed if the community attack rate continues to escalate.”
Penny Ward，伦敦国王学院制药学教授表示：“这一消息无法掩盖这一病毒在人群中大肆传播的事实以及如果社区传染率继续上升的话，少部分由于新冠而需要入院治疗的人可能会变成大批群体。”
原文来源：Mental Floss
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