How Airborne Transmission Works?
When someone sneezes, coughs, laughs, or otherwise exhales in some way, airborne transmission happens. If the person is infected covid-19 and omicron, even other respiratory disease, the disease would be possibly transmitted through droplets. The bacteria or viruses that are most commonly transmitted through small respiratory droplets.
Exposure to droplets produced in the coughs and sneezes of infected individuals or contact with droplet-contaminated surfaces (fomites) have been widely perceived as the dominant transmission modes for respiratory pathogens. Airborne transmission is traditionally defined as involving the inhalation of infectious aerosols or “droplet nuclei” smaller than 5 μm and mainly at a distance of >1 to 2 m away from the infected individual, and such transmission has been thought to be relevant only for “unusual” diseases. However, there is robust evidence supporting the airborne transmission of many respiratory viruses, including severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome (MERS)–CoV, influenza virus, human rhinovirus, and respiratory syncytial virus (RSV). The limitations of traditional views of droplet, fomite, and airborne transmission were illuminated during the COVID-19 pandemic. Droplet and fomite transmission of SARS-CoV-2 alone cannot account for the numerous superspreading events and differences in transmission between indoor and outdoor environments observed during the COVID-19 pandemic. Controversy surrounding how COVID-19 is transmitted and what interventions are needed to control the pandemic has revealed a critical need to better understand the airborne transmission pathway of respiratory viruses, which will allow for better-informed strategies to mitigate the transmission of respiratory infections.
(quoted from Airborne transmission of respiratory viruses By SCIENCE, 27 Aug 2021 Vol 373, Issue 6558
https://www.science.org/doi/10.1126/science.abd9149#:~:text=Airborne%20transmission%20is%20traditionally%20defined,only%20for%20%E2%80%9Cunusual%E2%80%9D%20diseases. )
On Jan. 8th, China reopens borders sai final farewell to zero-COVID. Tourist, businessman, students, anyone entry China no qurantine any more. The centerilized qurantine requirements no need any more. All the passengers plan come China, 48-hour nucleic test result, vaccine passport is enough. This means communication and exchange of increase a lot. Thus airborne transmission will increase as well.
Air purifier would reduce the airborne transmission, help capture virus, bacteria, then reduce the chance to get sick. Air purifiers help a lot. It’s necessary to locate an air purifier in the living room, conference room, meeting room, club, restaurant where people talk, communicate a lot and there is a lot of airborne transmission. Prepare a car air purifier in your vehicle, prepare a home air purifir in your room, prepare a commercial air purifier in your office, perpare air purifiers for your health. Breath healthily. Stay healthy and safe.
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Post time: Jan-31-2023
