The new mutant strain BA.2 of Xinguan is the Omicron subtype mutant strain BA.2.
The Omicron subtype mutant strain BA.2 has a higher vaccine tolerance and antibody tolerance and is more infectious than Omicron. The main changes of the virus are
1. More infectious: The high mutation of BA.2 on RBD enables it to enhance its infectivity by binding more strongly to ACE2.
2. Stronger vaccine tolerance: BA.2 has 4 additional mutations in RBD, and its vaccine breakthrough ability is about 30% higher than that of BA.1.
3. Stronger Antibody Tolerance: The Omicron subvariant optimizes the RBD mutations in RBM, which enhances the infectivity of the virus and evades direct neutralizing antibodies.
Although the new variant strain is very strong, but even if infected with the new crown do not need to be overly nervous.