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Scientists have put together a shocking video that shows how deadly coronavirus droplets can spread across two supermarket aisles and infect shoppers, with the bug hanging in the air for ‘several minutes.
Experts from Aalto University in Finland have put together an animation so shoppers can be aware of the dangers of spreading the killer disease.
‘Someone infected by the coronavirus, can cough and walk away, but then leave behind extremely small aerosol particles carrying the coronavirus. These particles could then end up in the respiratory tract of others in the vicinity,’ says Aalto University Assistant Professor Ville Vuorinen.
WHAT ARE THE CORONAVIRUS SYMPTOMS?
The virus, called COVID-19, is transmitted from person to person via droplets when an infected person breathes out, coughs or sneezes.
It can also spread via contaminated surfaces such as door handles or railings.
Coronavirus infections have a wide range of symptoms, including fever, coughing, shortness of breath and breathing difficulties.
Mild cases can cause cold-like symptoms including a sore throat, headache, fever, cough or trouble breathing.
Severe cases can cause pneumonia, severe acute respiratory illness, kidney failure and death.
Finnish research centres created the animation by modelling a scenario where a person coughs in an aisle between supermarket shelves.
Taking into account factors like in-store ventilation, experts from Aalto University, VTT Technical Research Centre of Finland and Finnish Meteorological Institute each carried out the modelling independently, using the same starting conditions.
A statement from Aalto University said: ‘The researchers obtained the same preliminary result: in the situation under investigation, the aerosol cloud spreads outside the immediate vicinity of the coughing person and dilutes in the process.’
Scientists involved in the research were working at Aalto University, VTT Technical Research Centre of Finland and Finnish Meteorological Institute.
Jussi Sane, chief specialist at the Finnish Institute for Health and Welfare, said: ‘The preliminary results obtained by the consortium highlight the importance of our recommendations.
‘The Finnish Institute for Health and Welfare recommends that you stay at home if you are unwell and that you maintain physical distance with everyone. The instructions also include coughing into your sleeve or a tissue and taking care of good hand hygiene.‘