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Research: In what areas does COVID-19 remain in the air?

According to research, COVID-19 appears to remain in the air in crowded places or in rooms that do not have ventilation, and can be spread through tiny airborne particles, known as aerosols. In two hospitals in Uhan China, researchers have found traces of the genetic material of the virus that hovered in the air of the hospital toilets, in an indoor space that houses a large number of people as well as in rooms where medicine staff leaves his protector equipment. However, research published in the journal Nature Research on Monday did not provide information on whether airborne particles could cause infections. The question of how easily COVID-19 can spread through the air has been the subject of much debate lately. The World Health Organization (WHO) has said that the risk of this happening is limited to certain cases, noting that in more than 75.000 cases in China, the virus has not been reported.

But given that outbreaks With nearly 3 million worldwide approaching, scientists are trying to figure out exactly how the contamination. Humans produce two types of droplets when they breathe, cough or talk: a) Larger droplets, which fall to the ground before evaporating, causing infection, mainly through the objects in which they are installed, and b) the smallest droplets, which are aerosols and can to stay in the air for hours. The researchers, led by him Ke Lan of the University of Uchan, created the so-called aerosol traps in and around two hospitals in the city that hosted its first cases. pandemic. A few aerosols were found in patients' wards, supermarkets and residential buildings, and many were found in toilets as well as in other areas where there are many people, including an indoor area, near one of the hospitals. Particularly high concentrations of aerosols were found in rooms where medical staff left their protective equipment, which may indicate that particles were contaminating them. tools They were taken to the air when they removed them masks, their gloves and uniforms. Its results research emphasize the importance of ventilation, the reduction of overcrowding and hygiene rules.

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