The research found that the viral load in the air from patients with the alpha variant was 18 times more than can be explained by increased amounts of virus in nasal swabs and saliva.
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The researchers also found that face coverings, such as masks and surgical cloths, reduce the amount of virus breathed into the air by about 50%.
“Because research indicates that successive variables are constantly improving in air travel, better ventilation and tight-fitting masks, along with vaccination, can help offset the increased risks,” he added.
Back in the early days of the pandemic, scientists were initially unable to confirm that COVID-19 could spread through particles in the air, and was thought to be transmitted through actions such as coughing and sneezing.
A woman wears a protective mask during the coronavirus pandemic (Credit: Tel Aviv University)
We already knew this virus in saliva and nasal swabs [were] Increase in alpha variable infections. virus[es] From the nose and mouth it can be transmitted by spraying large droplets near an infected person. One of the study’s authors, doctoral student Jianyu Lai, said our study shows that the virus in exhaled aerosols is increasing further.
The researchers recommend a “layered approach” to protecting people in public functions and indoor spaces – these include vaccinations, tight-fitting masks, improved ventilation, increased filtration and UV disinfection of air.
“The take-home messages from this paper are that the coronavirus can be in your exhaled breath (and) improve your exhaled breath, and using a mask reduces the chance of inhaling it on others,” Assistant Clinical said. Professor Jennifer German, co-author of the study.
