Saturday, October 16, 2021

What happens to the lung of a person infected with Coronavirus?

Although the new Corona virus has infected more than 1.27 million people worldwide, 80% of these cases have mild symptoms.

The World Health Organization confirmed that 80% of the injured recover, noting that every 6 infected person suffers from severe symptoms that reach pneumonia.

Dr. Gon Wilson, president-elect of the Australian Royal College of Physicians and a respiratory physician, in turn, assured the “Guardian” newspaper that all serious infections of the Coronavirus suffer from pneumonia.

Wilson added that people who contract the virus can be classified into four categories, the first being people who are infected with the virus but do not have symptoms, and it is the least dangerous.

And the second category is those who are infected with the virus and its symptoms in the upper respiratory tract such as fever, cough, and headache, and these are able to transmit the infection without knowledge.

As for the third category, it represents the largest number of people infected with the Coronavirus, and they are the people with whom the virus develops to become more like seasonal influenza and are unable to work, so it requires their transfer to hospitals.

While the fourth category includes people with pneumonia.

Wilson pointed out that in Wuhan, China, the epicenter of the virus outbreak, a study found that among those who tested positive for the virus, nearly 6% had severe symptoms.

While the World Health Organization has confirmed that the elderly and people who suffer from underlying problems such as high blood pressure, heart and lung problems or diabetes, are more likely to develop serious diseases.

How does pneumonia develop?
As for the stages of development of the infection, Wilson emphasized that the symptoms of fever and coughing for a person with Coronavirus occur as a result of the virus reaching the respiratory tree, which are the air passages that connect air between the lungs and the outside.

He said that viruses infect the lining of the respiratory system and cause a wound in it, which causes inflammation, and this, in turn, irritates the nerves in the lining of the airway, and it appears in the radiation as a patch of dust, which causes coughing.

He added: “If this worsens, which is what happens in the fourth category, it goes beyond the lining of the airway and goes to the gas exchange units, which are at the end of the airways. If these units are injured, they respond by pouring an inflammatory substance into the air sacs located in the Bottom of the lungs. “

He stressed that if the air sacs become inflamed, this causes an “influx of inflammatory materials (fluids and inflammatory cells) into the lungs and ends up with pneumonia, and thus the lung becomes unable to get enough oxygen into the bloodstream, which reduces the body’s ability to absorb oxygen and get rid of carbon dioxide, and ultimately cause death.

He also stressed that this pneumonia differs from the rest of pneumonia caused by viruses and bacteria, indicating that there is evidence that pneumonia caused by Covid-19 may be severe.

He added that this inflammation affects all parts of the lungs, not small parts, as known infections do.

He said that as soon as we have an infection in the lung, our bodies try to respond, and they struggle to destroy the virus and limit its reproduction, but this response weakens between one person and another, including the elderly and people who suffer from heart, lung, liver, kidney and diabetes diseases, and therefore these are considered The groups most at risk from the virus.

As for the treatment for this infection, said Dr. Christine Jenkins, President of the Australian Lung Foundation and a respiratory physician: “Unfortunately, we do not yet have anything that can prevent people from contracting pneumonia caused by the Coronavirus.”

She added: “Scientists are already testing all kinds of drugs and we hope to discover that there are different combinations of viral and antiviral drugs that can be effective, but at the present time, there is no existing treatment other than supportive treatment, which is what we provide to people in intensive care.”

She said: “We put the patient on respirators to maintain high levels of oxygen in the body so that the lung can function normally again and recover.”

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