IDXChannel – Research in Colorado State University (CSU) revealed that men and people who speak at a louder volume are more likely to spread Covid-19.
The study, published in the journal Environmental Science and Technology Letters in November, examined the emission of respiratory aerosols from a panel of healthy individuals of different ages and sexes while speaking and singing in a controlled laboratory set.
Researchers measured the concentration of particle counts between 0.25 and 33 micrometers from 63 study participants aged 12-61 years and the volume of sound, as well as the level of exhaled CO2. All of these indicators are monitored by researchers.
Measurements are carried out in two ways; when the research subject is wearing a mask and when taking it off.
From there it is known that when people sing, 77% more aerosols are formed than talking; adults produce 62% more aerosols than children under 17 years; and men produce 34% more aerosols than women.
“A follow-up study, namely an experiment playing a wind instrument, is awaiting the results of data analysis and peer review,” explained the Fox News report, quoted by MNC Portal, Wednesday (12/8/2021).
The study was originally developed early in the Covid-19 pandemic in an effort to determine what people in performing arts can do to safely return to the stage.
“From this study we can know that singing at a loud volume produces more aerosols than just casual talk. So, the louder people talk or sing, the worse the aerosol emissions,” explained CSU in an official statement.
It is also related to gender. Because men produce more aerosols than women, and adults more than children, this is a reference material to consider in an effort to reduce the risk of transmission.
It should be noted here that this study was conducted with a laboratory set, which means that it cannot be generalized to real-world sets. What’s more, the study did not involve vocal type testing and the examiner did not measure the risk of respiratory disease transmission. For this reason, further studies are needed. (TIA)
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