The immune system does not remember all the germs equally, but our body cells seem to analyze the corona virus very seriously.
Scientists monitoring the immune response to the corona virus have now begun to see signs of strong and lasting immunity, even if people are exposed to the mild severity of covid 19.
Numerous new research reports suggest that antibodies fighting the disease, including immune cells B cells and T cells, may be able to detect the virus and that it may appear several months after recovery. Continuity is maintained.
Experts involved in a recent study by the University of Arizona said that the physical system works the way it is supposed to.
Although scientists have not been able to predict how long this immune response will last, several experts have hailed the data as a welcome sign that body cells do their job well and there is a strong possibility that They can help control corona viruses very quickly when they have the disease again.
"This is exactly what you expect, there are all sorts of indications that we have a complete immune response," said Marion Paper, an expert at the University of Washington in another study.
He said the safety of re-infected with covid 19 has not yet been fully verified, but there is evidence that most people who are exposed to the virus a second time are able to keep it away from themselves. ۔
The results could help allay fears that the virus could weaken the immune system and make people sick again and again.
Researchers have not yet found solid evidence that the corona virus can infect a person 2 or more times, especially once within a few months of being infected and recovering.
Dr. Marion said that the immune system may explain this.
The debate over the immune response to the corona virus is focused on antibodies or proteins that prevent germs from infecting cells.
But antibodies represent a complex and well-organized aspect of the immune system.
Many germs, for example, survive antibodies but become weaker in the face of killer T cells that force the infected cells to destroy themselves.
Another type of T cell acts as a mechanism for antibody formation with B cells.
Antibodies have a period because they are not living cells but proteins that cannot regenerate themselves and begin to dissolve in the blood after several weeks or months.
Most B cells that make early antibodies also die after the risk is gone.
But even when there is no virus attack, the body maintains the ranks of long-lived B cells so that they can produce antibodies to fight the virus in the future.
Some of these B cells are in the bloodstream, others go to the bone marrow and produce small amounts of antibodies that remain active for several years, sometimes decades, after the disease is gone.
Numerous medical research reports have now discovered that people who recover from covid 19 still have some amount of antibodies against the virus in their blood after several months.
Experts say that these antibodies are reduced but take a stable form that can be seen even 3 months after the onset of symptoms, this reaction seems to be long lasting.
Experts say that the appearance of antibodies several months after the onset of the disease is a strong indication that B cells are present in the bone marrow.
Dr. Marion and his team succeeded in finding B cells from the blood of patients with moderate to severe cod that could identify the corona virus and propagate it in the laboratory.
Numerous research reports, including a study published in the journal Cell last week, isolated T-cells that attacked the corona virus from the blood of healthy people who had long since recovered from covid 19.
When these T cells were exposed to the corona virus in the laboratory, they sent anti-virus signals and made fresh copies of their counterparts to fight the known enemy.
Analysis of T cells showed reports of an immune response to the corona virus, even in patients whose antibody levels are so low that it is difficult to identify, the report said.
Importantly, in most new research reports, this powerful reaction was discovered in people who did not become seriously ill with covid 19.
However, it is not currently possible to compare the results of those infected with covid 19 with those hospitalized patients whose bodies have difficulty balancing the immune response to the virus or cannot be compared with such individuals. They do not show any symptoms.
Jason Netland, an expert at the University of Washington, said research groups around the world were working on the response, but that the majority of such cases were moderately ill, if they were protected. This is also good news.
This is good news if these people are protected.
Although it is not yet possible to fully confirm that the virus has not been re-infected, recent reports and new data reinforce the idea that people infected with code 19 develop immunity to the virus and that it is also strong.
Some diseases, such as the flu, infect many people over and over again, but in part because of the constant changes in influenza viruses that make it difficult for the immune system to quickly identify these germs.
In contrast, corona viruses change their structure very slowly.
But researchers warn that not much is known yet, although research reports suggest possible protection, testing it could be dangerous.
Cheung Hee Chang, an expert at the University of Michigan, said it was difficult to predict what might happen in the near future, that much would change in humans, and that many factors could play a role.
Dr. Marion said that long-term human response tracking would take time, but scientists could not yet say definitively about all the elements needed for a good immune memory.
Experts say that people's bodies are adapting to the post-corona condition and that we need to take a longer look at immunity, as it may change in a few months or years, or it may not change at all. ۔
"There is no shortcut in this regard, we just have to monitor the people."
