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Earlier this week, a great team of international doctors around the world has published a changing statement to the World Health Organization: COVID-19 is actually airborne. Tuesday, WHO recognized that it examines "emerging evidence" described in a letter signed by more than 200 experts. Then theyconfirmedThursday that the airborne transmission of the coronavirus novel can take place during the medical procedures generating aerosols - and in other closed contexts, including bars, restaurants and places of worship, the propagation of the aerosol "can not be excluded ". If the coronavirus can float in the air in tiny droplets for hours outside the operating room, this could mean that your coronavirus prevention methods are not exactly effective.

JAIMIE MEYER, MD, a specialist in infectious diseases of Yale's disease and associate professor in Yale School of Medicine, explains that experts discussed whether Covid-19 is suspended in the air since the beginning of the pandemic - and Is important to understand exactly what it means and why does it count?

Particles can pass through the fabric

"When viruses are transported on droplets, these particles are relatively large, so they can not very well cross fabric facial coatings," she explains. These droplets are also relatively heavy, so they fall quickly on the ground. This is why the droplet viruses are mainly from the person to the person when they are in close contact (ie less than 6 feet). "Most of the scientific evidence argues that Covid-19 is mainly transported on droplets, which is why social distance and mask work," she maintains.

On the other hand, truly pending diseases or measles - are worn on much smaller particles that can hang in the air for longer periods of time, called aerosols. "Aerosols are produced, such as spraying, when someone cougles or sneezes, or during procedures such as the insertion of a respiratory tube or to give respiratory treatment. These small particles pass more easily through coatings of Fabric face but do not pass as well through surgical masks or N95 respirators, although these are often in limited supply and therefore reserved for health workers, "says Dr. Meyer.

Declaration

It emphasizes that other similar viruses in Sars-Cov-2-including SARS-COV-1 and seas - were airborne and there were epidemics in apartment buildings where the virus scanned CVC systems. However, "this has not been seen in Covid-19, apart from a reportFrom an epidemic in China where the air conditioning unit would have been widespread the virus throughout the restaurant, as evidenced by the fact that there were cases among remote seating, "she explains." For this reason, hundreds of scientists have appealed to the World Health Organization to recognize that Covid-19 can, in fact, be airborne. This is the subject of a great scientific debate because, although the virus has been found suspended in the air for 30 minutesIn a controlled laboratory frame, it is not thought to be the main mode of transmission. "

Which finally came on July 9th. "Covid-19 epidemics reported in some closed contexts, such as restaurants, nightclubs, places of worship or workplaces where people can cross, talk or sing," said who has declared in new guidelines. "In these epidemics, the transmission of the aerosol, especially in these domestic locations where there are congested and unusually ventilated spaces where infected persons spend long periods of time with others, can not be excluded."

The consequences are enormous

If the virus is airborne, it would mean that the droplets of it would not fall immediately on the ground. Instead, they could linger in the air inside, infecting anyone nearby. It could make almost impossible to contain the virus in congested spaces with low ventilation, even with masks and precautions for social distancing in place.

"Ventilation systems in schools, retirement homes, residences and businesses may need to minimize recirculating air and add new powerful filters. Ultraviolet headlamps may be required to kill floating viral particles in tiny droplets inside, "says theNew York Times. "I am very concerned about the general public and schools and ventilation in school buildings and dormitories on university campuses and in bars and churches and where people sing and where people gather", Donald Milton, One of the authors who wrote the Open Letter to the World Health Organization and other health agencies.

As for yourself, do not miss the advice of life of Mr. Meyer's life in our brand new special report: I am a doctor and here's how to ever catch Covid-19 inside .