The 5 wellness care personnel were being definitively seronegative versus H5 in all assays, meaning they were not infected with H5. This review shows a pattern of weakening binding affinity of current antibodies versus H5 isolates after a while, indicating the H5N1 virus is evolving immune escape of our healthcare https://www.dailypioneer.com/2020/page1/bid-to-paint-26-11-as-hindu-terror.html