通風程度與SARS-CoV-2傳播之關聯

Association Between SARS-CoV-2 Transmission and Indoor Air Ventilation

自2019年新型冠狀病毒SARS-CoV-2造成全球大流行以來，目前證據顯示其傳播途徑具有三種：接觸傳播、飛沫傳播、及氣膠粒（aerosol）傳播。藉由落實常規介入措施可以有效阻絕接觸傳播與飛沫傳播，然而氣膠粒傳播途徑可藉由通風管路汙染其他空間，必須透過有效率的通風方式才能減少其傳染機會。二氧化碳（CO_2）濃度可作為室內空氣通風效率的指標。本文藉由整理現有文獻對於二氧化碳濃度與氣膠粒傳染途徑的關聯性分析，進而討論改善室內二氧化碳濃度作為指標監測以減少SARS-CoV-2的氣膠粒傳染。希望藉由這些研究提供的資料可以降低感染SARS-CoV-2的風險。

The coronavirus disease 2019 (COVID-19) pandemic continues today. [A9] COVID-19 has three routes of transmission: contact, droplets, and aerosol. Current transmission prevention measures can effectively prevent transmission by the contact and droplet routes. However, aerosol generation causes the virus to travel in confined spaces and enhances transmission. CO2 concentration is an indicator of ventilation efficiency. This article describes the association between sudden acute respiratory syndrome coronavirus 2 transmission and indoor CO2 concentrations to provide direction for disease prevention and slow the pandemic.