How airborne is Covid-19? Like cigarette smoke spreading through a room, says expert


As the second wave of the Covid-19 pandemic rages across India, international health experts have warned that the coronavirus disease (Covid-19) is airborne, but that doesn’t mean the virus is spreading. spreads through the air and whoever comes out. will simply be infected by breathing.

The United States Centers of Disease Control (CDC) issued a new notice on Friday regarding the transmission of coronavirus disease (Covid-19) and pointed out that there are three main ways a person can contract Covid-19 . The CDC said the virus is mainly spread by inhalation, deposition and contact. The CDC’s advice says that when you inhale air that carries very small fine droplets or aerosol particles containing the virus, you are infected.

It highlights that the risk of transmission is highest within three to six feet of an infected person because the quantity of these droplets is very fine in nature. He said these droplets are spread through exhalation during activities such as calm breathing, speaking, singing, exercising, coughing, sneezing and transmitting infection.

This means that in confined spaces or poorly ventilated areas, there is an increased risk of this disease spreading from person to person. The CDC also pointed out that large droplets are not of concern because they disperse within seconds, but the fine droplets and aerosol particles that form when these droplets dry can stay in suspension for at least 30 minutes to 1 hour. .

Two medical health experts dealing with the second wave of Covid-19 also told HT recently that just being in flight doesn’t mean the virus is in the air.

“Airborne doesn’t mean he’s in the air and wherever you are you can catch him. If there is a person positive for Covid-19 in a small room or an enclosed space that lacks ventilation and the person coughs, the aerosol remains suspended in the air for 30 minutes to 1 hour, ”said Friday at HT Dr Rommel Tickoo of Max Healthcare.

Another expert, Dr Ambarish Satwik, vascular and endovascular surgeon at Sir Ganga Ram Hospital, said one can imagine these aerosols as a cloud of smoke from a person smoking. “If someone is smoking a cigarette in one corner of a large room, then you can smell cigarette smoke standing in another corner of the room. This is how the virus behaves now. It dissipates from one part of the room to another and if one person is infected in that room, it is likely that others sharing the same space will be infected if they are unmasked. Even if you walk into a room where someone has smoked a cigarette an hour earlier, you still smell the scent, so this is another example of how the virus behaves. “

The two doctors also pointed out that people still do not know how to properly wear a mask. They also said people were often surprised at the way they contracted the virus. “Half of the people don’t know how to wear a mask, they think they’ve done everything right, but they go out to buy groceries or to the pharmacy, they meet people and they tend to play with the mask and so on. that’s how they get it. . It’s not airborne in that wherever you go you get the virus, ”Tickoo added.

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