Particles carrying a coronavirus can remain in the air and end up in another person - a new Finnish study

Preliminary research results from four Finnish research bodies show that aerosol particles carrying the coronavirus can persist in the air longer than previously thought. Researchers say it is important to avoid busy public interiors.

4/6/2020

Aalto University, the Finnish Meteorological Institute, VTT and the University of Helsinki have studied how extremely small aerosol particles floating in the air travel with the air flow. Aerosol particles escape from the airways when coughing, sneezing or even talking. They also carry pathogens such as coronaviruses.

According to a press release released on Monday, the researchers came to the same preliminary result: in the situation under study, the aerosol cloud also spreads to the immediate area outside the immediate vicinity of the coughing person. On the other hand, the cloud dilutes at the same time, but it takes up to minutes for the cloud to spread and dilute.

- If a cough infected with a coronavirus walks away and another person arrives near the same place, extremely small aerosol particles containing coronavirus in the air can end up in this other person's airways, says Ville Vuorinen, an assistant professor at Aalto University.

According to THL, new recommendations cannot yet be made directly on the basis of modeling.

- The preliminary results of the consortium underline the importance of our recommendations. The Department of Health and Welfare THL recommends staying at home sick and everyone taking physical distance. Our instructions are also to cough up a sleeve or handkerchief and take care of good hand hygiene, says leading expert Jussi Sane from THL, according to the press release.

https://www.tellerreport.com/news/2020-04-06---particles-carrying-a-coronavirus-can-remain-in-the-air-and-end-up-in-another-person---a-new-finnish-study-.ByBJSfqdvU.html


When someone coughs between a store shelf, particles that carry such a crown can spread - watch the researchers' muting video (in Finnish but its an animation so it's easy to understand)
4/6/2020

A new Finnish study has examined how small aerosol particles spread during coughing. This provides an interesting perspective on the possible spread of the coronavirus.

Watch the modeling done by researchers at Aalto University, VTT, the Finnish Meteorological Institute and the University of Helsinki in the video above.
Read more about the study here: Particles carrying the coronavirus can remain in the air and end up in another person - a new Finnish study