期刊
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
卷 63, 期 6, 页码 E395-E401出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/JOM.0000000000002193
关键词
aerosols; COVID-19; prevention; SARS-CoV-2; transmission
COVID-19 has claimed many victims globally due to its high virulence and contagiousness, with aerosols likely playing a significant role in the transmission of SARS-Cov-2. Measures such as improving ventilation, maintaining social distance, and wearing masks are crucial in preventing the spread of the virus.
Coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2), has claimed many victims worldwide due to its high virulence and contagiousness. The person-to-person transmission of SARS-Cov-2 when in close contact is facilitated by respiratory droplets containing the virus particles, and by skin contact with contaminated surfaces. However, the large number of COVID-19 infections cannot be explained only by droplet deposition or contact contamination. It seems very plausible that aerosols are important in transmitting SARS-Cov-2. It has been demonstrated that SARS-CoV-2 remains viable in aerosols for hours, facilitating rapid distribution of the virus over great distances. Aerosols may, therefore, also be responsible for so-called super-spreader events. Indirect evidence points to a correlation between ventilation and the transmission and spread of SARS-Cov-2, supporting ventilation as an important factor in preventing airborne transmission. Further actions to avoid transmission of COVID-19 include social distancing, hygiene measures, and barrier measures, such as face-coverings. Professional masks offer better protection than cloth masks. These protection measures are especially relevant to health care workers, when performing endotracheal intubation, but the risk from non-invasive ventilation and nebulizing treatment seems to be moderate.
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