The Five health and fitness treatment staff were definitively seronegative versus H5 in all assays, which means they weren't contaminated with H5. Hemagglutinin inhibition (Hello) assay: The Hello assay checks for antibodies to the hemagglutinin of the specific influenza virus employing crimson blood cells (RBC). Several forms of RBCs ended https://www.dailypioneer.com/2021/state-editions/gandhi-visited-odisha-8-times-from-1921-to-1946.html