Rabaan Ali A, Al-Ahmed Shamsah H, Al-Malkey Maysaa, Alsubki Roua, Ezzikouri Sayeh, Al-Hababi Fadel Hassan, Sah Ranjit, Al Mutair Abbas, Alhumaid Saad, Al-Tawfiq Jaffar A, Al-Omari Awad, Al-Qaaneh Ayman M, Al-Qahtani Manaf, Tirupathi Raghavendra, Al Hamad Mohammad A, Al-Baghli Nadira A, Sulaiman Tarek, Alsubait Arwa, Mehta Rachana, Abass Elfadil, Alawi Maha, Alshahrani Fatimah, Shrestha Dhan Bahadur, Karobari Mohmed Isaqali, Pecho-Silva Samuel, Arteaga-Livias Kovy, Bonilla-Aldana D Katterine, Rodriguez-Morales Alfonso J
Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia.
Specialty Paediatric Medicine, Qatif Central Hospital, Qatif, Saudi Arabia.
Infez Med. 2021 Mar 1;29(1):10-19.
Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic worldwide. On a daily basis the number of deaths associated with COVID-19 is rapidly increasing. The main transmission route of SARS-CoV-2 is through the air (airborne transmission). This review details the airborne transmission of SARS-CoV-2, the aerodynamics, and different modes of transmission (e.g. droplets, droplet nuclei, and aerosol particles). SARS-CoV-2 can be transmitted by an infected person during activities such as expiration, coughing, sneezing, and talking. During such activities and some medical procedures, aerosols and droplets contaminated with SARS-CoV-2 particles are formed. Depending on their sizes and the environmental conditions, such particles stay viable in the air for varying time periods and can cause infection in a susceptible host. Very few studies have been conducted to establish the mechanism or the aerodynamics of virus-loaded particles and droplets in causing infection. In this review we discuss the various forms in which SARS-CoV-2 virus particles can be transmitted in air and cause infections.
由严重急性呼吸综合征冠状病毒2(SARS-CoV-2)引起的2019冠状病毒病(COVID-19)已在全球大流行。与COVID-19相关的死亡人数每天都在迅速增加。SARS-CoV-2的主要传播途径是通过空气(空气传播)。本综述详细介绍了SARS-CoV-2的空气传播、空气动力学以及不同的传播方式(如飞沫、飞沫核和气溶胶颗粒)。SARS-CoV-2可在感染者呼气、咳嗽、打喷嚏和说话等活动期间传播。在这些活动以及一些医疗程序中,会形成被SARS-CoV-2颗粒污染的气溶胶和飞沫。根据其大小和环境条件,这些颗粒在空气中存活的时间各不相同,并可导致易感宿主感染。目前很少有研究来确定携带病毒的颗粒和飞沫导致感染的机制或空气动力学。在本综述中,我们讨论了SARS-CoV-2病毒颗粒在空气中传播并导致感染的各种形式。