‘The biggest risk to the world at the moment is simply Delta,’ said microbiologist Sharon Peacock, who runs Britain’s efforts to sequence the genomes of coronavirus variants, calling it the ‘fittest and fastest variant yet’
Hospital staff do an X-ray of the lung of a patient suffering from COVID-19 at Hospital del Mar, in Barcelona, Spain, on July 15.is the fastest, fittest and most formidable version of the coronavirus that causes COVID-19 the world has encountered, and it is upending assumptions about the disease even as nations loosen restrictions and open their economies, according to virologists and epidemiologists.
Viruses constantly evolve through mutation, with new variants arising. Sometimes these are more dangerous than the original. In Singapore, where Delta is the most common variant, government officials reported on Friday that three quarters of its coronavirus cases occurred among vaccinated individuals, though none were severely ill.
“Protection for the individual is very strong; protection for infecting others is significantly lower,” Davidovitch said. “It’s outcompeting all other viruses because it just spreads so much more efficiently,” Crotty added. In the United States, the Delta variant has arrived as many Americans – vaccinated and not – have stopped wearing masks indoors.
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