The Dhaka Times Desk The world is devastated by the outbreak of the deadly corona virus. But this disease is not very dangerous for all people, but many people die from this disease. How does corona virus damage the body?
How does the corona virus attack the body, why do some people die of this disease?
What is the 'incubation' or early rearing period?
During this time the virus establishes itself slowly. This virus works by entering the cells that make up the human body and taking control of them.
The coronavirus, whose official name is SARS-CoV-2, can enter your body with your breath (when someone nearby sneezes or coughs) or by touching your mouth after touching an area infected with the virus.
Initially, it attacks the throat, airways and lung cells and creates corona factories in those places. The new virus then spreads to different parts of the body and infects more cells.
You won't get sick during this initial period, and some people may have no symptoms at all.
The duration of the incubation period – the time between first infection and the appearance of symptoms – varies from person to person, but on average is 5 days.
It is a harmless disease!
In most people's experience, the corona virus seems like a harmless disease. For 8 out of 10 people, Covid-19 is a harmless infection and its main symptoms are cough and fever. Body ache, sore throat and headache may also occur, but there is no word that it will happen. The body's immune system reacts due to the virus infection and the body fever occurs.
The immune system recognizes the virus as essentially hostile and sends chemicals called cytokines to the rest of the body to tell it something is wrong. Due to which symptoms like pain and fever occur in the body.
A dry cough may initially be caused by the corona virus. A dry cough may also occur due to the discomfort caused by the cells being infected by the virus.
However, many people will cough up sputum at some point, which contains dead lung cells from the virus.
Full rest, drinking plenty of fluids and taking paracetamol are advised when such symptoms occur. There is no need to consult a hospital or specialist if such symptoms occur.
This phase lasts for about a week. Most people recover during this phase, because by then their body's immune system has fought off the virus. However, some people develop a more harmful version of Covid-19.
New research into the disease suggests that during this stage of the disease, sufferers may develop a cold.
Corona is a terrible disease
If the disease persists after this stage, it is normal for the body's immune system to overreact to the virus.
The chemicals that send messages to the body, then react with inflammation in different parts of the body.
Dr. Nathalie McDormet of King's College London said, “The virus disrupts the immune system. Due to which the body starts swelling excessively. How this is happening, we still don't know anything for sure." Inflammation of the lungs is called pneumonia.
If it could enter through the mouth and pass through the trachea to the small tubes of the lungs, it might eventually reach the tiny alveoli.
It is in these sacs that oxygen enters the blood and carbon dioxide is released. However, in case of pneumonia, these small sacs start to fill with water and as a result, it causes discomfort in breathing, causing symptoms like breathing problems. Some people also need ventilators to breathe. According to data from China, 14% people were infected in this phase.
A very complex disease
So far, it is thought that about 61% of people infected with the TP3T virus have advanced disease. At this stage the body is unable to carry out normal functions and there is a high possibility of death.
The main problem is that at this stage the immune system starts to go out of control and causes various damages throughout the body.
The patient may also go into septic shock at this stage when the blood pressure drops drastically, and the patient's organs may even stop working.
Symptoms of severe breathing problems occur when inflammation spreads to the lungs, because not enough oxygen can flow throughout the body to sustain the body. Because of this, the kidneys can stop purifying the blood and the intestinal wall can be damaged.
"The virus causes inflammation on such a large scale that the whole body breaks down, multiple organs can fail at the same time," said doctor Bharat Pankhania.
At this stage, if the body's immune system does not cope with the virus, it spreads to all parts of the body and causes more damage.
ECMO or extra-corporeal membrane oxygenation may also be used to treat the patient at this stage.
In this method, blood is taken out of the body through a tube through an artificial lung and the blood is oxygenated and re-introduced into the body. But sometimes when the level of damage is high, the organs are no longer able to keep the body alive.
References: BBC Bangla
Things to do to prevent Corona virus
# stay at home all the time.
# Follow the rules and use mask when going out for emergency.
# three-layer surgical mask can be washed if desired.
# wash clothes after coming home from outside. Or hang it without shaking for at least four hours.
# Wash hands thoroughly (for at least 20 seconds) with soap or liquid before coming outside.
# plastic PPE or eyes, face, head must be washed thoroughly with detergent and dried after one use.
# Wear PPE made of cloth or clean as described.
# Use a head cap that completely covers the hair.
# Those who have sneeze cough should follow all the rules promulgated by the government. Also, wash hands as directed before and after handling food items, keys, switches, mice, remote controls, mobiles, watches, computer desks, TVs, etc. and after using the bathroom. Those who have dry hands use Moisture after washing their hands. Soap or hand liquid can be used. Why can this virus remain in the crackle (cracked part) of dry hands? Avoid using highly alkaline soaps or detergents.
English 
Bengali