The world has dealt with two corona waves before the corona amicron type spread. And these have brought to the fore a number of issues related to the human body's immune system. Although the previous infection is mentioned in the memory of the human body's immune system, in the case of SARS COV-2, this memory does not last long. A recent study published in the journal Nature reviewed the human body's immune system after coronary heart disease. Attempts have been made to determine how immunity works against Kovid-19 and its variants.
According to a research report published in the journal Nature:
1.The first role is played by ‘B’ cells. These become active when the germs attack. After making antibodies in the human body, the ‘B’ cells die.
2.Within a few months, the immunity of the human body against the virus begins to decline. This is not an unknown phenomenon for scientists. Because, immunity must be exhausted.
3.There are two types of B cells in terms of lifespan. One of them lives a short time, the other has a long lifespan. Short-term ‘B’ cells die and long-term ‘B’ cells become ‘B’ cells with memory. These can then divide very quickly and turn into plasma cells when exposed to the virus. These cells remain in our body for the rest of our lives.
4.The function of memory B cells improves over time. One study found that six months after the vaccine was administered, the number of "memory" B cells in the human body increased and that they were working against new types.
5.Another pillar of memory immunity is the T cell. These kill the virus and send signals to other parts of the immune system to be active against the virus. Some T cells then turn into memory T cells.
6.Memory ‘T’ cells are formed in the body of some people from some previous corona infections like common cold. It can also detect SARS-COV-2 virus.
7.According to physicians, memory cells cannot prevent infection in the same way that natural immunity prevents infection. But it is not necessary for them to do so.
8.After the Kovid-19 infection, the memory cells have some time to prepare themselves. This is because no serious illness is seen immediately after infection. During this time the memory ‘T’ cells continue their work.
9.Several studies have shown that people who have been vaccinated or infected with the SARS COV-2 virus have the same effect on their body's T cells as against delta type antimicrobials. This is happening even after a lot of virus conversions.
Symbolic image: AFP
The world has dealt with two corona waves before the corona amicron type spread. And these have brought to the fore a number of issues related to the human body's immune system. Although the previous infection is mentioned in the memory of the human body's immune system, in the case of SARS COV-2, this memory does not last long. A recent study published in the journal Nature reviewed the human body's immune system after coronary heart disease. Attempts have been made to determine how immunity works against Covid-19 and its variants
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