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Viral Infection

Viral Infection: Viral Diseases, Nature of Structure, Propagation, List of diseases caused by the virus, Are Viruses Infected?

Viral Infection
Viral Infection/Diseases

Diseases caused by a type of pathogen called viruses (according to some, inanimate particles) that invade the human body and cause diseases in the body are called viral diseases or viral diseases. If the virus attacks and succeeds in entering the body, it is said that the virus has been infected. All viruses are parasites. They can only reproduce and reproduce inside living cells. The virus that lives inside a living cell is called a host cell. Bacteria in the form of viruses are much smaller than cells; Most of them range in size from 0.01 micrometers to 0.1 micrometers in diameter (1 millionth of a meter). Very few viruses invade bacterial cells. Apart from humans, many other animals and plants also get viral diseases.


Viral Infection: Nature of Structure

There are no species of viruses because viruses are not made of cells. That is why it is said that there are different "types" of viruses. The particles of a virus are structurally very simple. It has no nucleus or cytoplasm. The virus consists of a marrow made up of hereditary material, surrounded by a layer of proteins. This hereditary component may be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). In both cases, the genetic material contains a small number of genes, but the virus can reproduce and reproduce inside the host cell. Sometimes the host cell may have a membrane covering the virus particles inside, but the virus does not create it on its own, rather the virus "steals" it from the surface layer of the virus cell.


Propagation of Viral Infection

The viruses do not ingest, inhale, excrete, or move, nor do they grow, nor do they respond to the environment. The virus, therefore, does not exhibit any other normal nature of the organism other than reproduction; The virus has to reproduce not even by itself, but by becoming a parasite. That is why some scientists consider viruses to be something between living and non-living chemicals.

Once the virus enters the host cell, it disrupts the cell's metabolic system and takes over the genetic equipment portion of that cell, and uses it to make more virus particles. After many virus particles are produced in this way, the host cell dies and the viruses spread in the environment so that they can invade other cells. Thus, the virus can cause many diseases in the human body. Such as cold or flu, influenza, measles, otitis (mumps), German measles (rubella), etc. However, the reproductive process of the virus does not continue forever. Usually, the human immune system destroys the virus, and the patient recovers. However, sometimes the immune system cannot destroy the virus quickly enough, and permanent damage to the body can even lead to death. In some viral infections, the virus can attack immune cells. Such as the HIV virus (a virus that causes human immunodeficiency) which can eventually lead to a deadly disease called AIDS (acquired immunodeficiency syndrome).


List of Viral Diseases

The name of the virus is the name of the disease

Varicella-zoster virus is transmitted through water pox (chickenpox) air.

The variola virus is transmitted through smallpox air.

Mumps virus is transmitted through the air in mumps.

Measles virus Measles is transmitted through the air.

The poliovirus is transmitted from food and water by the polio fly.

Japanese encephalitis virus is transmitted by Japanese encephalitis Culex and Aedes mosquitoes.

The influenza virus spreads through the sneeze, cough, and mucus of the influenza patient.

The rabies virus is transmitted by rabies/hydrophobia in mad dogs and cats.

The hepatitis virus spreads hepatitis/jaundice through infected water, food, and drink.

Rhinovirus is transmitted through sneezing and coughing in patients with the common cold.

HIV (Human Immunodeficiency Virus) is transmitted through the blood and semen of an AIDS patient

The dengue virus is transmitted by the dengue Aedes mosquito

The swine influenza virus is transmitted through swine flu pigs.


Is the Virus-Infected?

The virus is not a plant, not an animal, not even a complete cell. A tiny organic particle is called a microorganism. It may remain lifeless year after year, then no feature of life will be seen in it. A virus is like a protein substance. Inside the body, the wall is DNA or RNA (nucleic acid). Whenever a host enters the body, they become active and reproduce rapidly. This is where the problem lies. Animals, birds, plants, fungi, and even bacteria pose a threat to viruses. In other words, it causes certain death of bacteria.


We see pictures of coronavirus round. Not all viruses are round - they can be tailed like sticks, like threads, like bread, like bang chi.

Virus infection refers to the entry of a virus into a body (human body or any other host). The virus enters and multiplies, and the resulting reaction produces toxins. This causes various diseases in the host body. When a virus is transmitted to a person's body, it enters another body through a carrier. For example, it can float in the air. It can be spread by bacteria, worms, ants, lice, flies, fungi, etc. It can also spread if the host body comes in contact with another body. This disease is called a contagious disease because it is spread by touch. Infectious disease means contagious disease, which means that the disease is transmitted from one body to another. That is, diseases caused by viruses.

In the case of bacterial disease, it is prevented with antibiotics. There are antivirals for the virus, there are different vaccines. Many viral diseases have been eradicated. The disease caused by coronavirus is highly contagious. Efforts are underway to find a vaccine. The body already has resistance. That immune system fights the virus. Defeat in that war is the catastrophe of the host body. Millions of people in the world die due to the virus. Viruses are responsible for about a dozen important human diseases. Notable among these commonly transmitted diseases are dengue fever, polio, jaundice, influenza, mumps, measles, mumps, flu, AIDS, etc. The Spanish flu killed tens of millions of people in 1918. During the First World War, the common people became infected with the plague from the affected soldiers. Kovid-19, a disease caused by the coronavirus, has been widely transmitted this year. So far, about 5.1 million people worldwide have been infected with Covid-19, and more than 3.30 million people have died. There is also a branch of medical science called the Department of Infectious Pathology. It is also present in Bangladesh. As a result, those who are spreading contagious diseases are nothing but blind and radical idiots. They are misleading people and spreading various falsehoods. I am glad that the protests of the science-minded people have finally forced them to stop. I hope they will not lie in the future.


Thanks,
Take care, stay healthy.


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