The  spread of the highly transmissible Delta variant of coronavirus has been driving the surge in infections worldwide, with major contributers has been  India and the United States .

The highest number of new Covid-19 cases in that week was reported from the United States, followed by India, Indonesia, Brazil, and Iran. According to a Bloomberg report, the US reported 761,216 new infections in the week ended Sunday, the highest total since early February.

 Over 4 million coronavirus disease  cases were reported from July 26 to August 1, which was largely attributed by the World Health Organization  to a substantial increase in the Eastern Mediterranean and the Western Pacific Regions. But the number of fatalities related to the virus witnessed an 8% decline as compared to the previous week.

Among these five nations, Iran has been witnessing a continued surge, with the Islamic Republic recording nearly 41,000 fresh infections on Monday. The  number of Covid-19 cases reported globally exceeded the  milestone of 200 million last week.

 Increase  in Covid-19 cases is driven by the Delta variant first identified in India which has now been reported from 135 countries, as per the UN health agency’s last epidemiological report. While the Alpha variant of coronavirus, first identified in England, has spread to 182 countries, the Delta variant has caused more concerns to authorities given its high transmissibility.

 PHE said,”Some initial findings  indicate that levels of virus in those who become infected with Delta variant  having already been vaccinated may be similar to levels found in unvaccinated people”.

US 35.94 million ,India 31.99 million, Brazil 20.17 million, Russia 6.4 million, France 6.37 million, UK 6.12 million, Turkey 5.94 million, Argentina 5.02 million, Columbia 4.84 million, Spain 4.62 millionThese are the top 10 countries with the highest overall covid 19 cases.

UK scientists have already warned that the people vaccinated against  Covid-19 transmit the Delta strain as easily as unvaccinated. Public Health England said in a report that vaccination will not completely stop Delta variant transmission even as they provide high levels of protection.

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