Learn how the virus spreads in the air

The appearance in the world of the new coronavirus, SARS-CoV-2, imposed a massive confinement. Although the recommendations persist (hand washing, use of mask and distancing), over time experts have been studying more about the pandemic virus. Quarantines have been ending in most of the world and humanity has had to learn, as announced, to live with this invisible enemy.

Starting from the fact that isolation, Although it is the most recommended measure by epidemiologists in the absence of a vaccine, it is not a possibility given the rhythm of daily activities that have resumed their course. Experts consulted by THE HERALD they offer guidelines on how the virus behaves in the different spaces that we are possibly sharing with SARS-CoV-2.

Universidad del Norte professor Diego Viasus explains that saliva particles, through which the virus can be transmitted, have different sizes: “The largest so-called ‘respiratory droplets’ and the smallest, called ‘aerosols’. According to the WHO, the virus spreads mainly through ‘respiratory droplets’ between people who are in close contact. Because the ‘respiratory droplets’ are larger they fall quickly to the ground, while aerosols can remain suspended in the air for a long time and travel a greater distance. “

Therefore, taking into account the existence of aerosols, Viasus recalls that staying at a distance from other people reduces exposure. However, it clarifies that distancing is not always enough.

“At the community level, aerosol transmission could occur in specific settings, especially in indoor, crowded and poorly ventilated spaces ”.


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