Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 26, Number 7—July 2020
Dispatch

Aerosol and Surface Distribution of Severe Acute Respiratory Syndrome Coronavirus 2 in Hospital Wards, Wuhan, China, 2020

Zhen-Dong Guo1, Zhong-Yi Wang1, Shou-Feng Zhang1, Xiao Li, Lin Li, Chao Li, Yan Cui, Rui-Bin Fu, Yun-Zhu Dong, Xiang-Yang Chi, Meng-Yao Zhang, Kun Liu, Cheng Cao, Bin Liu, Ke Zhang, Yu-Wei GaoComments to Author , Bing LuComments to Author , and Wei ChenComments to Author 
Author affiliations: Academy of Military Medical Sciences, Beijing, China (Z.-D. Guo, Z.-Y. Wang, S.-F. Zhang, X. Li, L. Li, Y.-Z. Dong, X.-Y. Chi, M.-Y. Zhang, C. Cao, K. Zhang, Y.-W. Gao, B. Lu, W. Chen); Institute of Medical Support Technology, Institute of Systems Engineering, Academy of Military Sciences, Tianjin, China (C. Li); Wuhan Huoshenshan Hospital, Wuhan, China (Y. Cui, R.-B. Fu, B. Liu); Central Theater General Hospital, Wuhan (K. Liu)

Main Article

Table 2

Results of testing for SARS-CoV-2 in general ward, Huoshenshan Hospital, Wuhan, China, 2020*

Area, sample
 Intense positive/weak positive/negative†
 Rate of positivity, %
 Average virus concentration‡
Contaminated area
Isolation ward
Floor 1/1/11 15.4 1.6 × 104
Doorknob 0/1/11 8.3 6.5 × 102
Air outlet 0/1/11 8.3 3.4 × 103
Sickbed handrail 0/0/12 0 ND
Patient mask 1/1/8 20 9.2 × 103
Indoor air (sampling site 1 in Figure 2, panel C) 0/2/9 18.2 0.68
Indoor air (sampling site 2 in Figure 2, panel C) 0/0/5 0 ND
Patient corridor
Floor 0/0/10 0 ND
Computer mouse or keyboard 0/1/4 20 3.9 × 103
Trash can 0/0/8 0 ND
Indoor air 0/0/4 0 ND
PPE
Face shield of medical staff 0/0/3 0 ND
Sleeve cuff of medical staff 0/0/3 0 ND
Glove of medical staff 0/0/3 0 ND
Shoe sole of medical staff 0/0/3 0 ND
Subtotal
 2/7/105
 7.9
 NA
Semicontaminated area
Dressing Room 4
Floor 0/0/5 0 ND
Indoor air 0/0/5 0 ND
Doorknob 0/0/3 0 ND
Buffer Room 3
Floor 0/0/5 0 ND
Indoor air 0/0/3 0 ND
Doorknob 0/0/3 0 ND
Subtotal
 0/0/24
 0
 NA
Clean area
Dressing Rooms 1, 2, 3, and 5
Doorknob 0/0/12 0 ND
Floor 0/0/12 0 ND
Indoor air 0/0/6 0 ND
Buffer rooms 1 and 2
Doorknob 0/0/6 0 ND
Floor 0/0/6 0 ND
Indoor air 0/0/4 0 ND
Subtotal
 0/0/46
 0
 NA
Total 2/7/175 4.9 NA

*NA, not applicable; ND, not determined; PPE, personal protective equipment; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
†Intense positive indicates a positive result for both open reading frame 1ab gene and nucleoprotein gene of SARS-CoV-2; weak positive indicates a positive result for only 1 of the genes.
‡The average virus concentration of indoor air expressed as copies/L and of swab samples, as copies/sample.

Main Article

1These authors contributed equally to this article.

Page created: April 10, 2020
Page updated: June 18, 2020
Page reviewed: June 18, 2020
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external