Relative contributions of transmission routes for COVID-19 among healthcare personnel providing patient care
Relative contributions of transmission routes for COVID-19 among healthcare personnel providing patient care
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DOI：
10.1080/15459624.2020.1784427
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发表时间：
2020-07-08
影响因子：
2
通讯作者：
Jones, Rachael M.
中科院分区：
文献类型：
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作者：
Jones, Rachael M.
COVID-19从受感染患者传播到医护人员的途径是争论的主题，但对于选择个人防护设备至关重要。本文旨在探讨三种传播途径-接触、飞沫和吸入-对医护人员（HCP）职业获得性COVID-19感染风险的贡献。该方法是定量微生物风险评估和暴露模型，其中可能的模型参数基于SARS-CoV-2病毒的特定数据（如可用）。关键的发现是飞沫和吸入传播途径在接触途径中占主导地位，在不使用个人防护设备的情况下，平均占感染概率的35%，57%和8.2%。平均而言，80%的吸入暴露发生在HCP靠近患者时。飞沫和吸入的相对贡献取决于可吸入颗粒物中SARS-CoV-2的排放（
The routes of COVID-19 transmission to healthcare personnel from infected patients is the subject of debate, but is critical to the selection of personal protective equipment. The objective of this paper was to explore the contributions of three transmission routes-contact, droplet, and inhalation-to the risk of occupationally acquired COVID-19 infection among healthcare personnel (HCP). The method was quantitative microbial risk assessment, and an exposure model, where possible model parameters were based on data specific to the SARS-CoV-2 virus when available. The key finding was that droplet and inhalation transmission routes predominate over the contact route, contributing 35%, 57%, and 8.2% of the probability of infection, on average, without use of personal protective equipment. On average, 80% of inhalation exposure occurs when HCP are near patients. The relative contribution of droplet and inhalation depends upon the emission of SARS-CoV-2 in respirable particles (