Aerosol transmission, an indispensable route of COVID-19 spread: case study of a department-store cluster

• DOI: 10.1007/s11783-021-1386-6
• Publication Date: 2020-12-29T14:02:36Z
• Authors: Guanyu Jiang; Can Wang; Lu Song; Xing Wang; Yangyang Zhou; Chunnan Fei; He Liu
• Keywords: Isolation

Abstract Patients with COVID-19 have revealed a massive outbreak around the world, leading to widespread concerns in global scope. Figuring out transmission route of is necessary control further spread. We analyzed data 43 patients Baodi Department Store (China) supplement and epidemiological characteristics cluster outbreak. Incubation median was estimated endure 5.95 days (2–13 days). Almost 76.3% sought medical attention immediately uponillness onset. The period ofillness onsetto hospitalization confirmation were 3.96 (0–14) 5.58 (1–21), respectively. different case could demonstrate unique due particularity sites. SRAS-CoV-2 can be released into surrounding air through patient’s respiratory tract activities, exist for long time long-distance transportation. RNA detected aerosol sites, including isolation ward, general outdoor, toilet, hallway, crowded public area. Environmental factors influencing indicated that SARS-CoV-2 transportation dependent on temperature, humidity, ventilation rate inactivating chemicals (ozone) content. As infection numbers 2 6, 10, 13, 16, 17, 18, 20 23, we believe played significant role analyzing their exposure history environmental conditions Store. Aerosol occur some cases when are suitable, it an indispensable