The 5 wellbeing treatment workers had been definitively seronegative versus H5 in all assays, meaning they weren't contaminated with H5. This analyze reveals a pattern of weakening binding affinity of current antibodies towards H5 isolates after a while, indicating the H5N1 virus is evolving immune escape of our medical defenses. https://www.dailypioneer.com/2014/india/on-the-run-kohli-held-in-joint-op.html