'4 virus variants causing China Covid surge': India's vaccine task force head

The current surge in China is being caused not by just one variant of the Covid-19 virus, but at least 4 strains of Sars-CoV-2.

This revelation was made by Dr NK Arora, head of India's National Technical Advisory Group on Immunisation in an interview with NDTV.

He said that Omicron subvariant BF.7 accounts for 15% of the cases, while 50% cases are due to the BN and BQ series of variants. 10-15% cases are being caused by the SVV variant.

"In China they are naive. They have not been exposed to the virus before, and the vaccine they got is probably less effective. I must tell you that most of them received three to four doses," Dr Arora was quoted as saying.

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"There is huge opacity on the current situation on China. Opacity in terms of the cases, severity of the cases, their vaccination status and then the kind of variants circulating there," he added.