Researchers at the University of São Paulo (USP) tested the new test in Brazil using blood samples collected during a COVID-19 population survey. The method showed potential for identifying the disease earlier, in its initial stages, when symptoms are subtle and traditional laboratory tests often fail.

The new diagnostic method was evaluated in a study conducted by researchers from the Department of Clinical Medicine, Biochemistry, Immunology, and Social Medicine at the Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP). Coordinated by researcher Marco Andrey Frade, the study is published in the journal BMC Infectious Diseases.