Many countries and organizations are trying to find a vaccine for the corona virus in various ways Some are trying to make an inactive vaccine, some a live vaccine and some a DNA vaccine.
Let's take a look at what these methods actually are:
Live Vaccine
The virus responsible for the disease is used to make live vaccines But they cannot harm the body, that is, they have zero potential for disease As a result, the virus does not infect the body, but it is able to reproduce inside human cells. When the virus begins to reproduce, the human body's natural immune system becomes active and destroys the virus by producing antibodies. In this way, the human body develops the ability to resist that particular disease, and when the virus enters the body, the antibodies in the body are able to easily identify and destroy them. In this way the human body develops resistance against the virus
The smallpox vaccine has been discovered using this method In addition, the first approved vaccine against Ebola, which has spread to African countries in the form of an epidemic, has been developed in a similar manner.
Inactive Vaccine
The virus has no nucleus or cytoplasm in its body; It is composed only of proteins and nucleic acids The virus can only reproduce within a suitable host Their internal information carriers can be of two types - DNA and RNA6
Inactive vaccines contain specific viral proteins or inactivated viruses. The body's immune system will kill them Because inactive or dead viruses are introduced into the body, they cannot reproduce. But even if they do not spread the disease, the body's immune system identifies them as invaders and makes antibodies to fight them.
This method has been used in vaccines against influenza, polio, whooping cough, hepatitis B and tetanus.
Gene-Based Vaccine
It's a lot like an inactive vaccine The added benefit, however, is that pharmaceutical companies can produce gene-based vaccines faster than inactivated vaccines. Which can be very important in dealing with Covid-19
Because of the discovery of the vaccine against Covid-19, billions of doses would have to be produced to spread the vaccine around the world as soon as possible. The gene-based vaccine can be made with accurate genetic information from the DNA or RNA of the corona virus.
Once the vaccine enters the body, it will produce non-toxic viral proteins and the human body's natural immune system will make antibodies to eliminate them.
However, so far there is no vaccine made in this way in the market Various pharmaceutical companies from different countries are working on the development of this method and experiments are being carried out in their laboratories
When will the vaccine come?
As many as 3.7 million people worldwide have been infected with the corona virus as of Tuesday More than two and a half lakh people have died Yet no one can say where the death march will end with the speed of the virus infection
Scientists also fear that the virus will return if proper vaccines or antidotes are not discovered. As a result, one question is now on everyone's face, when will the vaccine come?
Many countries and organizations are trying to find a vaccine for Covid-19 like themselves Some people have started laboratory tests and even human body tests But still a lot of time is needed After testing in the human body, the first thing to see is whether it is safe Then you have to see if the body is making antibodies and whether it is working properly
After verifying everything properly, commercial production will start There will be 6 steps in Peru Therefore, many experts say that the corona virus vaccine is unlikely to hit the market before 2021.