Home WORLD-NEWS Covid Delta variant dominates within months: WHO

Covid Delta variant dominates within months: WHO


GENVA: The highly contagious Delta strain of Covid-19 is expected to become the dominant strain of the virus in the coming months, the World Health Organization said on Wednesday.
Delta, first discovered in India, is now registered in 124 areas — 13 more than last week — and already accounts for more than three-quarters of the sequenced specimens in many major countries, the WHO said.
“It is expected to quickly outpace other variants and become the dominant circulating line in the coming months,” the UN health agency said in its weekly epidemiological update.
Of the three other coronavirus variants of concern (VOCs), Alpha, first detected in Britain, has been reported in 180 areas (six more than last week), Beta, first detected in South Africa, in 130 (plus seven) and Gamma, first discovered in Brazil, in 78 (three up).
According to SARS-CoV-2 sequences submitted to the GISAID Global Science Initiative in the four weeks to July 20, the prevalence of Delta in several countries was more than 75 percent.
Those include Australia, Bangladesh, Botswana, Great Britain, China, Denmark, India, Indonesia, Israel, Portugal, Russia, Singapore and South Africa.
“Increasing evidence supports the increased transmissibility of the Delta variant compared to non-VOCs. However, the exact mechanism for the increase in transmissibility remains unclear,” the WHO said.
The Geneva-based organization said a total of 3.4 million new cases of Covid-19 were reported in the week to July 18 – a 12 percent increase from the week before.
“At this rate, the cumulative number of cases reported worldwide could exceed 200 million in the next three weeks,” the WHO said.
The organization said the global increase in transmission appears to be driven by four factors: more communicable variants; the relaxation of public health measures; increased social mixing and large numbers of unvaccinated people.
The number of cases increased by 30 percent in the WHO’s western Pacific region and by 21 percent in the European region.
The highest number of new cases were reported from Indonesia (3,50,273 new cases; up 44 percent), Great Britain (2,96,447 new cases; up 41 percent) and Brazil (2,87,610 new cases; down of 14 percent).
However, the number of weekly deaths remained stable at 57,000, similar to the previous week and after a steady decline for more than two months.



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