Commenting on The burden of nosocomial COVID-19 in Wales: results from a multicentre retrospective observational study of 2508 hospitalised adults. Nosocomial infections are not a new entity. Prior to COVID-19, the prevalence of healthcare-associated infection in the developed world was 4%–7.1%.1 The pandemic brought hospital admissions to the forefront of public awareness. Who should be admitted to hospital, and who should stay at home? Emergency admissions significantly dropped, for fear of being exposed to the virus. This risk was real, as the earliest reports showed that the rate of COVID-19 acquired in hospital in all inpatients with the disease was as high as 12%.2 In this issue, Ponsford and colleagues3 report outcomes of 2508 patients with COVID-19 in multiple Welsh hospitals during the first wave, based on likelihood of source of exposure. Although the majority of all cases acquired infection in …

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医院中的 COVID-19 风险和死亡率：现在不是放松警惕的时候

评论威尔士院内 COVID-19 的负担：来自对 2508 名住院成人的多中心回顾性观察研究的结果。医院感染并不是一个新实体。在 COVID-19 之前，发达国家的医疗保健相关感染的流行率为 4%–7.1%。1 大流行使住院人数成为公众关注的焦点。谁应该住院，谁应该留在家里？由于担心接触病毒，紧急入院人数大幅下降。这种风险是真实存在的，因为最早的报告显示所有住院患者的 COVID-19 感染率高达 12%。2 在本期中，Ponsford 及其同事 3 报告了 2508 名 COVID-19 患者的结果根据暴露源的可能性，在第一波期间的多家威尔士医院中。