Antibodies triggered by two Chinese Covid-19 vaccines are less effective against the Delta variant compared with other strains, but the shots still offer protection, a Chinese disease control researcher has told state media. The Delta variant of the coronavirus, first detected in India, is becoming the globally dominant variant of the disease with its increased transmissibility, the World Health Organisation's chief scientist warned last week. Read: What we know so far about the Covid-19 Delta v
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黎明报-最新
2021-06-25 00:00:00.0