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22 July 2022Neutralization efficacy of antibodies against omicron variants BA.1 and BA.2 declines quickly
The omicron variant of the SARS-CoV-2 virus was first detected in South Africa in November 2021. The high level of infectiousness of the virus and its ability to quickly spawn additional variants has also been observed in Germany: Since January 2022 the omicron variant BA.1 has dominated here, followed in subsequent months by the variant BA.2. In the meantime, the virus has mutated further, and since June the variants BA.4 and BA.5 have superseded their predecessors.
