Pathologic material (mucosal excretion from the nasal passages) obtained from a patient provisionally diagnosed with influenza was sent to the virological laboratory. What quick test allows detecting specific viral antigen in the investigated material?

Answer options

1. Direct and indirect enzyme-linked immunosorbent assay (ELISA)
2. Radioimmunoassay (RIA)
3. Reverse indirect hemagglutination (RIHA)
4. Direct and indirect immunofluorescence (IF)
5. Hemagglutination inhibition assay (HAI)

Explanation

Serology - Immunofluorescence assay (IFA) IFA to detect specific antibody, antigen, or virus offers a simple, convenient, and quick test, but is not quantitative