Emerg Infect Dis. 2021 Sep;27(9):2340-2348. doi: 10.3201/eid2709.210363. Epub 2021 Jul 1.
We investigated the risk of coronavirus disease (COVID-19)- patients transmitting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to emergency medical service (EMS) providers, stratified by aerosol-generating procedures (AGP), in King County, Washington, USA, during February 16-July 31, 2020. We conducted a retrospective cohort investigation using a statewide COVID-19 registry and identified 1,115 encounters, 182 with ≥1 AGP. Overall, COVID-19 incidence among EMS personnel was 0.57 infections/10,000 person-days. Incidence per 10,000 person-days did not differ whether or not infection was attributed to a COVID-19 patient encounter (0.28 vs. 0.59; p>0.05). The 1 case attributed to a COVID-19 patient encounter occurred within an at-risk period and involved an AGP. We observed a very low risk for COVID-19 infection attributable to patient encounters among EMS first responders, supporting clinical strategies that maintain established practices for treating patients in emergency conditions.
我们调查了美国华盛顿州金县 2020 年 2 月 16 日至 7 月 31 日期间,按产生气溶胶的程序(AGP)分层的,患有冠状病毒病(COVID-19)的患者将严重急性呼吸综合征冠状病毒 2(SARS-CoV-2)传播给急诊医疗服务(EMS)提供者的风险。我们使用全州范围的 COVID-19 注册处进行了回顾性队列研究,确定了 1,115 次接触,其中 182 次接触至少有 1 次 AGP。总体而言,EMS 人员中 COVID-19 的发病率为每 10,000 人/天 0.57 例感染。无论感染是否归因于 COVID-19 患者接触,每 10,000 人/天的发病率并无差异(0.28 比 0.59;p>0.05)。归因于 COVID-19 患者接触的 1 例病例发生在高危期内,并涉及 AGP。我们观察到 EMS 一线急救人员因患者接触而感染 COVID-19 的风险非常低,这支持了在紧急情况下维持治疗患者的既定实践的临床策略。