Standard F Covid-19 Ag (FIA), a Coronavirus antigen kit which utilizes fluorescent immunoassay method, is already in use in Spain. According to the report, the test which is approved by the European Union is being used for passengers at several airports in Italy

This form of testing is similar to the PCR but faster and considered a better alternative to PCR tests, particularly in resource constrained areas and for centres where the lack of PCR reagents causes delays in results. Moreover, while the PCR test would take between one and two days, the Standard F Covid-19 Ag FIA test takes only 30 minutes.