Health
Talking creates a drop of coronavirus that can stay in the air for up to 14 minutes.
Coughing and sneezing may not be the only way for individuals to infect each other with infectious agents, including the deadly novel coronavirus. A recent study says that speaking can result in thousands of very small aerosol particles, which can remain suspended in the air for 8-14 minutes.
A study published in Proceedings of the National Academy of Sciences shows how mild or asymptomatic individuals infect people who come to neighborhoods, including offices, homes, cruise ships, and other confined spaces. May explain what you are doing.
However, the findings should be reproduced in more realistic situations. Researchers still don’t really understand the amount of virus needed to spread from one person to another to cause an infection.
The discovery that coronaviruses can become infected by speaking to each other strengthens the case of wearing PPE such as a mask and taking other precautions in such an environment to reduce the spread of COVID-19. I can.
the study:
Researchers used a sheet of intense laser light to visualize the bursts of audio droplets generated during repeated spoken phrases. Next, we derived quantitative estimates of both the number and size of speech droplets remaining in the air. Participants were asked to speak into the open end of the cardboard box, and researchers lit the interior with a green laser to trace a burst of droplets produced by a person while speaking.
The findings reveal the following:
- The laser scan recorded about 2,600 small droplets per second while a person was speaking
- Speaking out loud not only increases the volume of these droplets, it can also produce larger droplets
- Can generate at least 1,000 utterances containing viruses with a loud volume of just 1 minute
- These droplets, when dehydrated, contract immediately upon leaving the individual’s mouth, but float in the air for 8-14 minutes.
Researchers wonder whether all speech, sneezing, and cough droplets that carry the pathogen are equally infectious, or need to infect a specific amount of a novel coronavirus that is deadly for a person to get sick. I do not yet understand what is.
Based on this and other evidence, you should avoid face-to-face conversations with other people unless you are far away and in a well-ventilated area, including outdoors. ” Environmental Engineering Professor Linsey Marr told The New York Times at the Virginia Tech.
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