The five well being care staff had been definitively seronegative from H5 in all assays, which implies they weren't infected with H5. Hemagglutinin inhibition (HI) assay: The HI assay exams for antibodies towards the hemagglutinin of the precise influenza virus working with crimson blood cells (RBC). Various kinds of RBCs https://www.dailypioneer.com/2022/top-stories/cong-crisis--all-eyes-set-on-gehlot-sonia-meet-today.html