The World Pandemic COVID19 Corona Virus
There are trillions and trillions of viruses exist in our world, many of them have transmitted from animal to human and created a catastrophic scenario like swine Flu, bird flu, plague virus etc. COVID19 Corona Virus is affecting the same way and already caused damage at the great magnitude to the world. The virus originated from a “Bat”, but the real question is how it has transmitted to humans. In this blog, we have discussed how COVID19 Corona Virus has infected human immunity and further spread as The World Pandemic in just a short time.
How the human body resist any viruses to enter?
First, we need to understand how the virus survives and transmit from one host to another. As pathogen virus use host replicate itself. The virus slightly affects its original host. Human or animal body cells have receptors made of protein, who try to bond with other proteins used to communicate with other parts of the body. Sometimes viruses turn latch on them. Then the virus injects itself into a host cell and forces to make a copy of the virus. This process goes on and on like a chain reaction via hijacking other host cells.
The process usually kills the host cells. When the majority of the host cells are infected then the body of a host start failing to fight infection. This could also lead to death. Usually, as time passes the body of the host develops an immune system which can control or kill the infection. The problem arises when the virus jumps from one to another. Other Species might not have such an immune system to deal with the virus. This might sound scary that virus can spread through spices rapidly but jumping from one host to another, the virus has to pass a series of barriers of the host’s body.
How it transmitted from bat to Humans?
When a human comes in contact with animals actions or tissues, and though an intermediate species like mosquitoes. The chances of spillover on places like farms, barn, slaughterhouses, and laboratories are higher.
As an adaptive response system our skin, mucous membrane, stomach acid, sentinel cells can stop the virus from expecting a new host working. Even after entering into a host cell, a virus can successfully spread into a new host, if it can be replicate itself successfully. The first response from the infected cells is to release proteins that stop the virus to replicate within and nearby cells. if it fails adaptive immunity system starts to work. The T-cells kill the infected cells, and white blood cells produce antibodies that are specifically designed to fight this pathogen. The problem is that the white blood cells have never seen such kind of virus before. So it can take weeks or months to make the right antibodies. The situation gets worse in case of immunodeficiency.
If the virus has successfully passed through three things, Only then it can successfully transmit to the new host. 1st – Contact, 2nd – Infection & 3rd – Replication.
How it Reached pandemic level
The virus has to be able to transmit/ shipped from the original person. If it can infect one or two more people then it could lead to a chain of transmission. This is how COVID19 Corona Virus has transmitted and infecting more people around the world on a pandemic level. Though there are many disagreements on how it transmits from one person to another person. Yet the chain reaction of virus transmission occurred and still occurring as on you are reading this post.