How to confirm influenza A and influenza B viruses

In many cases, influenza A and influenza B viruses are identified through blood tests. Doctors can use blood tests to determine whether a patient has been infected with influenza A or influenza B. These tests detect the presence of specific antibodies, which the body produces in response to viral invasion, thereby allowing the virus to be identified. Additionally, cell culture or immunofluorescence assays can also be used to confirm the presence of influenza A or influenza B viruses. In cell culture, doctors observe characteristic changes in cells infected with influenza A or influenza B viruses to confirm their presence. Immunofluorescence assays can detect specific antigens associated with influenza A or influenza B viruses, thus helping to diagnose infection.