The number of cases of the novel coronavirus worldwide has reached more than 38 million and the rate of its spread has not slowed down.
But it is also a fact that so far millions of people infected with the virus have recovered, and the World Health Organization says that 97% of patients recover.
That is, the recovery rate is encouraging, but that doesn’t mean that people who have been infected with the corona virus once are at risk again. In fact, there have been some cases of coronavirus relapse in recent weeks. There seems to be no end to this epidemic.
An investigation was published on October 12 in which the case of a 25-year-old man from the United States was mentioned.
The young man’s name was not released, but it was reported that he was suffering from a second-degree seizure, although the immune system should have prevented it.
However, the number of cases affected by COD 19 is still negligible, meaning that out of more than 38 million cases, the disease has been confirmed for the second time in five cases so far.
According to Angela Rasmussen, a virologist at Columbia University in the United States, “the number of cases worldwide is negligible.”
The majority of second-time patients had mild or no symptoms of code 9 at all, but in at least 3 people the severity was more severe than in the first.
An 89-year-old woman from the Netherlands died of code-19 for the second time, the first death from a re-infection in the world.
Akiko Iowski, a Yale University expert involved in research into the case of an American teenager published in The Lancet Infectious Diseases, said that while the number of cases may not be the same, it indicates that a patient may have contracted code 19 again. May be.
“It should be borne in mind that some of those re-infected with code 19 had a more severe form of the disease this time around, meaning that even after recovery, it is important to wear a face mask and follow social distances,” he said. Unusual event to be affected again
The good news is that Code 19 seems unlikely to be affected a second time.
The first case of the disease was confirmed again in Hong Kong in late August, followed by three more cases, while work is underway to confirm 20 more suspected cases.
But it is still impossible to know the rate of these cases, as experts have to look for discrepancies between the genes of the corona virus to confirm the disease again.
In a country like the United States, there is a shortage of corona virus tests, and most people there do not get tested until they become more ill and hospitalized.
But even there, samples are usually not preserved for genetic analysis, making re-infection almost impossible.
Simply put, the vast majority of people who get sick again may not be able to diagnose it, while the absence of symptoms is another major problem.
In Hong Kong, for example, the second time Code 19 was diagnosed, it did not show any symptoms and was diagnosed during routine screening at the airport.
According to Marion Paper, an expert at the University of Washington, “there will be a large number of people who have been infected with the virus but have no symptoms.”
According to experts, a person who falls ill for the second time will be able to diagnose the case only because of its severity because they will have to return to the hospital, but this number may not be as high.
“If this were to become the norm, we would have to deal with thousands of cases,” said Akiko Ivassky.
In most people, the immune system will work as expected
Recurrent illness can have a number of causes, such as the first time the severity of the disease is so low that the immune response may not develop or the immune system may already be weakened by another illness.
It is usually only when a patient is exposed to a large amount of the virus that he or she develops an immune response to a disease.
According to experts, such possibilities are expected and have been observed in patients with various diseases such as measles and malaria.
Dr. Mitchell Mena of the Harvard TH Chen School of Public Health said, “When a disease spreads to millions of people, there is a risk of a second serious outbreak.”
For the second time in Europe, at least two patients infected with COD 19 had weakened immune systems. For example, an 89-year-old Dutch woman was undergoing chemotherapy for cancer treatment, but died of COD 19.
Second, a lack of genetic predisposition or an immune response in the patient affects the body’s ability to fight code 19.
“There will be many people who do not have a good immune response to certain germs,” said Florin Kramer, an expert at the Ashkenazi School of Medicine. We don’t believe in that, but it’s usually very rare. “
According to experts, the immune system functions in the majority of infected people in the same way that it works against code 1, just as it does against other germs.
According to Marion Paper, an expert at the University of Washington, “there are a number of diseases that repeatedly infect our bodies with a specific virus and we probably don’t know because there are no symptoms, it’s an essential part of boosting the immune system.”
According to Dr. Michael Mena of the Harvard TH Chen School of Public Health, when the body is infected with an unfamiliar virus, it is part of the routine to develop some immunity against it and then the reaction increases with each illness. ۔
“This phenomenon is common in children, but is rarely seen in adults because they are less exposed to new viruses,” he said.
“I think it’s important to remember that relapse is part of the evolution of our immune system. We often get lost because most people don’t work on the immune system,” he said.
Symptoms do not recur every time
Apart from confirmed cases of the disease, dozens of cases have now been reported in which the infected people became ill with code 19 and recovered again after several weeks or months.
These cases usually do not have important data, such as a laboratory diagnosis or a virus sample that needs to be sequenced.
According to Florin Kramer, an expert at the Ashkenazi School of Medicine, “The question is, is it really an infection? It is often very challenging to collect such data.
In the majority of such cases, the chances of relapse are very low, but the more likely it is that the symptoms of the first disease reappear in these individuals, the virus will probably start an worm reaction that will follow several weeks later. It can be severe and can cause symptoms such as fatigue or heart problems.
In some cases, patients may develop a mild illness. Fluorine Kramer said viruses such as the flu can cause serious illness, which persists when the immune system is weakened.
Second-time infected people can pass it on to others
Infected people who show no symptoms can transmit the virus to others.
In Hong Kong, for example, a patient who was re-diagnosed with code 19 was isolated in a hospital without symptoms, but his viral load was so high that he could transmit the virus to others.
Marion Paper said that of course the young man was not sick and his body was fine but he was not good for the community.
But researchers need to look at the live virus to ensure that the virus is transmitted. Researchers in South Korea investigated hundreds of cases of re-infection and ruled out the possibility of the disease in those individuals for the second time because they failed to detect multiple viruses in the samples.
Dr. Rasmussen said a similar process needs to be adopted to help rule out the possibility of virus transmission from each patient, the only way we can get to the bottom of it.
Vaccines are needed to prevent infection. Reports of the disease have raised concerns about whether vaccines against the coronavirus will be effective and whether it will make it possible for communities to gain immunity.
There is also a risk that the immunity from the vaccine will not be enough to prevent the virus from re-infecting.
But experts say vaccines are more likely to develop immunity that develops inside the body when infected with the virus.
The coronavirus, for example, has the ability to deceive the body’s initial immune alarm and gain time to sow the seeds of the disease.
Some people develop a severe immune response during this process that is more harmful than the disease.
Vaccines make this immune response without the virus interfering and also protect against harmful reactions.