New evidence for aerosol transmission of SARS-CoV-2
Chinese Journal of Nosocomiology
; 32(9):1430-1434, 2022.
Article
in English, Chinese
| CAB Abstracts | ID: covidwho-2012147
ABSTRACT
Since the outbreak of COVID-19, the opinion that the aerosol plays a key role in the transmission of SARS-CoV-2 has been controversial. The COVID-19 pandemic has continued interpersonal transmission for more than two years, especially after the emergence of Delta and Omicron variants, making the situation of COVID-19 pandemic more severe. The transmission of SARS-COV-2 variants was significantly accelerated and the time of transmission between generations was significantly shortened. Therefore, it has been questioned to attribute the close-range infection to droplet transmission. The point that the aerosol can also has a close-range transmission and may play a dominant role is neglected under the influence of traditional transmission mode of respiratory infectious diseases. A large number of studies have shown that normal breath, talk and cough could release a large number of respiratory aerosol particles, and the virus particles were mainly tiny particles(=5.0 micro m). The biological activity and infectivity of the droplet nuclei have been questioned in the studies on their physicochemical properties. Animal models of ferrets and hamsters showed that SARS-COV-2 could transmit via aerosol. Therefore, the new evidence for the aerosol transmission of SARS-COV-2 was reviewed in the article so as to provide latest evidence-based evidence for prevention and control of COVID-19.
Prion, Viral, Bacterial and Fungal Pathogens of Humans [VV210]; Animal Models of Human Diseases [VV400]; aerial application; aerosols; animal models; biological activity; coronavirus disease 2019; disease transmission; droplets; human diseases; infectious diseases; laboratory animals; pandemics; particle size; particulate matter; physicochemical properties; viral diseases; ferrets; hamsters; man; Severe acute respiratory syndrome coronavirus 2; Mustela; Mustelidae; Fissipeda; carnivores; mammals; vertebrates; Chordata; animals; eukaryotes; Cricetinae; Muridae; rodents; Homo; Hominidae; primates; Severe acute respiratory syndrome-related coronavirus; Betacoronavirus; Coronavirinae; Coronaviridae; Nidovirales; positive-sense ssRNA Viruses; ssRNA Viruses; RNA Viruses; viruses; bioactivity; communicable diseases; SARS-CoV-2; viral infections
Search on Google
Collection:
Databases of international organizations
Database:
CAB Abstracts
Language:
English
/
Chinese
Journal:
Chinese Journal of Nosocomiology
Year:
2022
Document Type:
Article
Similar
MEDLINE
...
LILACS
LIS