Serology/Antibody Tests – Tests that detect antibodies (eg, IgM, IgG) against the SARS-CoV-2 virus. Serology/antibody tests cannot be used to diagnose a current infection, but can confirm current or past infections. Monitoring testing with these types of tests is popular.

The researchers took BA.2 and BA.1 virus strain infected hamsters, and it was found to be the hamster infected with BA.2 was more seriously ill and the lung damage was more serious.