The delta variant is currently the main strain in the global epidemic of new crown pneumonia
He Qinghua, first-level inspector of the CDC of the National Health Commission, introduced at the press conference that the delta variant was first discovered in the new coronary pneumonia cases reported in India in September 2020.
Relevant scientific research and epidemic prevention and control practices at home and abroad have shown that the Delta mutant strain did not cause a subversive change in the biological characteristics of the new crown virus.
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