Monday 16 May 2022
Books – Syed Metwally
With the continuing development of the Corona virus, the resulting mutant cannot be overlooked, especially the omicron mutant, which resulted in more than one sub-strain.
Scientists in South Africa have concluded that the two newest sub-strains of the mutant omicron of the Corona virus can fool the immune bodies formed in the body from previous infections with the Corona virus enough to cause a new outbreak, but they are less able to coexist in the blood of those who received the vaccines to prevent the disease.
The scientists examined the PA4 and PA5 subtypes of Omicron, which the World Health Organization added last month to its watch list.
But it seems that there is a new study conducted by researchers at the University of Washington in the United States of America, which gave good news about those who received the full vaccination, before exposure to infection with the Omicron mutant of the Corona virus.
The study, published by the business-standard website, said that vaccination makes Omicron patients able to confront a variety of corona mutant.
The Washington study also looked at another piece of the immune system, B cells, a type of white blood cell that could go off to produce a burst of new antibodies if they identify the cause of the disease.
Crucially, the Washington team also found that a broad response was missing in unvaccinated people who had omicron as first exposure to the virus, and this would be a problem if a significantly different new variant emerged.
There is no guarantee that future mutations will be as mild as Omicron, and the future of the epidemic is difficult to predict because it depends not only on immunity in the population, but also on how mutated the virus is.
Other researchers who reviewed the studies said the findings match the growing body of evidence that immunity is enhanced from exposure to various viral variants by vaccination and infection. The scientists also showed broad immune responses in people who had delta after taking their doses.
The study examined blood samples from people infected with the Omicron mutation after receiving two or three doses of the Corona vaccine, and the result was that the antibodies in this category are “strongly superior”, compared to other groups that did not receive the vaccine or received it after infection.
The study concluded that millions of people who were vaccinated with two or three doses, and were subsequently infected with the Omicron mutant, are unlikely to be infected with the other “Covid-19” mutant, or at least will not suffer from its serious consequences.
The study added that the antibodies in this category could have recognized and eliminated other Covid mutant, among them Delta, which is significantly different from Omicron.
The study comes as Omicron continues to spread across the world, most notably in China, where Shanghai residents have been locked in for nearly six weeks.
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