摘要
The coronavirus disease 2019(COVID-19)pandemic is an unpreedented global event.It has become clear that COVID-19 is transmitted by virus-containing droplets(>5μm)and aerosols(<5μm),and that all human exhalatory activities(e.g.,breathing,speaking,singing,shouting,coughing,and sneezing)result in the emission of suspended droplets/aerosols of various sizes.As an example,COVID-19 patients exhale millions of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)RNA copies into the air per hour[1].SARS-CoV-2-laden aerosols play a profound role in disease transmission,as they can linger and remain viable in the air for a long duration(~16 h)[2]and travel a long distance(~4.8 m)due to their smaller size[3].
作者
Song Tang
Xia Li
Pei Ding
Yixin Mao
Fuchang Deng
Yu’e Cha
Siqi Zhuang
Cheng Ding
Jiao Wang
Youbin Wang
Xiaoning Zhao
Rachael M.Jones
Biao Kan
C.Raina MacIntyre
Dongqun Xu
Xiaoming Shi
唐宋;李霞;丁培;毛怡心;邓富昌;查玉娥;庄思琪;丁珵;王姣;王友斌;赵晓宁;Rachael M.Jones;阚飙;C.Raina MacIntyre;徐东群;施小明(China CDC Key Laboratory of Environment and Population Health,National Institute of Environmental Health,Chinese Center for Disease Control and Prevention,Beijing 100021,China;Center for Global Health,School of Public Health,Nanjing Medical University,Nanjing 211166,China;Section of Ecological Environment&Energy Resources,Beijing Institute of Metrology,Beijing 100012,China;Department of Family and Preventive Medicine,School of Medicine,University of Utah,Salt Lake City 84108,USA;State Key Laboratory for Infectious Disease Prevention and Control,National Institute of Communicable Disease Control and Prevention,Chinese Center for Disease Control and Prevention,Beijing 102206,China;The Kirby Institute,Faculty of Medicine,The University of New South Wales,Sydney 2052,Australia)
基金
supported by the National Institute of Environmental Health(NIEH)
the Chinese Center for Disease Control and Prevention(GWTX05 and SWJC05)
the Capital Health Development Scientific Research Project(2021-1G-2172)。
