Delta variant could ‘mutate its way out of existence’ say scientists

‘We were literally shocked to see the findings,’ Prof Inoue said. ‘The Delta variant in Japan was highly transmissible and keeping other variants out. But as the mutations piled up, we believe it eventually became a faulty virus and it was unable to make copies of itself. 

‘Considering that the cases haven’t been increasing, we think that at some point during such mutations it headed straight toward its natural extinction.’

Others argue that Japan’s vaccination program is to thank for the dramatic fall in cases.

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