Weather of Arabia - Two new strains of the Omicron mutant have caused a rapid return of Corona virus infections around the world.
The two new Omicron strains "BA4" and "BA5" (BA5) appeared in South Africa, and may soon become the most widespread in Europe and the United States, according to experts' expectations.
Since the first infections with the Corona virus were discovered, the virus has mutated and changed its shape, and the genetic copies arising from this are called mutant, and the main mutations of the Corona virus are still few; Including alpha and delta, which caused strong waves of infection.
PA.4 and PA.5 are the last Covid-19 mutant, and they have evolved from the Omicron strain to be more contagious and can bypass immunity from a previous infection or vaccine, meaning that people can be re-infected even if they contracted an Omicron earlier this year. ; Hence the fear of experts.
The outbreak of the PA4 and PA.5 mutant was detected in South Africa earlier this year, and it seems that they are now spreading faster than other mutant, and the two mutant have found their way to most of Europe, and it seems that their ability to infect Covid-19 will soon outweigh that of other mutant ones. ability of other mutants.
In the United Kingdom, early indications are of an expected increase in the number of coronavirus infections, driven by the outbreak of the PA4 and PA5 mutations, and in the United States, officials say they are seeing an increase in the number of Covid cases caused by the new PA4 mutations. and PA.5.
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Experts have no confirmation of the extent of the damage that will be caused by the PA4 and PA.5 mutant of Omicron, but in any case they are not more lethal than other corona mutant, and most people have developed immunity to the virus either through previous infections. Or by receiving the vaccine, which helps reduce the risk of infection in general.
However, the new PA4 and PA.5 mutations show the ability to spread more easily, in part due to the decline in the level of immunity in people, but in part due to the modifications that the virus has undergone in its composition.
Many countries have lifted their restrictions imposed to combat the Corona virus, which means that people are mixing with each other more, thus increasing the chances of the virus spreading.
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Several Arab countries have recorded a steady increase in the number of Corona virus infections since the beginning of June, and they are: