| Description |
According to the data from GISAID, until 25th July, BA.5 was accounted for 52% of the sequence library, making it the dominant strain in a new global outbreak. Some research results showed that BA.5 seems to be the most infectious version of SARS-CoV-2 with the R0 value of 18.6 (about 2.79 in wild type). Furthermore, the strong immune escape ability is also a powerful blessing for BA.5 to quickly become the dominant strain. A report from New York showed that the breakthrough infection capacity of BA.5 should be 4.2 times of BA.1. The latest research shows that BA.5 has also a strong immune escape from the serum of BA.1 infected people, which means that the existing "immune wall" in the population may be ineffective against BA.5.To facilitate the mutant-related research, drug trials and vaccine development in clinical reasearch, a high-throughput assay to measure IgG antibodies against the mutants is in urgent need. |
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