Recently, the number of coronavirus infections has increased worldwide, as the World Health Organization announced a few days ago that the virus remains a public health concern, calling on countries to continue monitoring it, analyzing its genetic sequence, and informing the organization to study new variants and determine their severity.
However, despite this increase in infections, people are less likely to be hospitalized or die due to corona infection now, as our immunity to the disease has changed significantly, and its severity has become less than it was before, according to what a number of experts confirmed to CBC. The American N.N.
Experts pointed out that the B and T cells, which maintain our immune memories, are no longer ignorant of this virus, as they were when we first encountered it in 2020.
And the US Centers for Disease Control and Prevention estimates that 97% of people in the United States have some immunity to Corona through vaccination, infection, or both.
Doctors try to treat a patient with corona in a hospital in China (Reuters)
In addition to improving our immunity to the virus, scientists have upgraded vaccines and antivirals to use if cases start to rise faster than now. Rapid virus detection tests have also become available in most laboratories around the world, and people have become more experienced in how to sterilize the home, purify the air, and protect themselves from infection.
“At this point, because of our immunity that we’ve developed over the past three years, the risk is lower, whether it’s people getting serious symptoms of the virus or having long-term corona, whose symptoms last for months,” said Dr. Megan Raney, an emergency physician and dean of the Yale School of Public Health.
She added, “Corona is still more dangerous than influenza, but its level of severity has become lower than before. It is fully expected that this virus will become more like other respiratory viruses, only in terms of seasonal spread.
And Rani continued: “However, it would be really strange for Corona to disappear completely or not cause visible symptoms or hospitalization and death. It is still (a virus) after all.”
For his part, Dr. Peter Chen Hong, an infectious disease specialist at the University of California, San Francisco, said that recent studies appear to show a decrease in the rate of long-term corona infections over time.
And he added, “When you look at these studies, you will find that the period of corona infection decreases by half.”
However, many health experts warn that, for many, the immune system is not working as quickly or as strongly as it should.
Experts explained that immune function naturally decreases with age, and it also declines due to some medications and health problems, such as cancer, diabetes and immune diseases.
This is in addition to the fact that some people are genetically more predisposed to the disease.
And while most of us have immune systems that can recognize key parts of the virus now, even that memory of infection fades over time. And the more time has passed since you were infected or vaccinated, the more forgetful your immune system becomes, according to experts who emphasized the constant need for caution and taking the necessary preventive measures against the virus.
2023-08-29 13:35:15
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