Physicists have figured out the trajectory of the cough drops. Dangerous distance - more than 6 meters

Researchers have managed to simulate air currents and cough drops around human bodies at various

wind speeds and other environmental factors.

With a typical cough, about a thousand drops are released. Scientists have found that the largest of them quickly settle to the ground due to gravity, but can be thrown out by a stream of coughing up to 1 meter even without wind. Medium droplets evaporate into smaller droplets, which are more easily carried by the wind and spread further.

Researchers offer a more detailed picturedispersion of droplets. When simulating the spread of droplets in the air, they took into account the biological aspects of the virus. These are non-volatile components during droplet evaporation.

"The evaporating droplet keeps the non-volatile viralcomponents, so the viral load increases, explains study author Hongying Li. The droplets, which eventually become aerosols, are more susceptible to inhalation deep into the lungs. This is what causes an infection in the lower respiratory tract, rather than large, non-evaporated cough drops. "

These results are also highly dependent on conditionsenvironment such as wind speed, humidity level and ambient temperature. Also, the conclusions of scientists are based on assumptions made from the existing scientific literature about the viability of the COVID-19 virus.

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