Before revision: Antigenic escape, immune escape, immune evasion or escape mutation occurs when the immune system of a host, especially of a human being, is unable to respond to an infectious agent, or, in other words, the host's immune system is no longer able to recognize and eliminate a pathogen such as a virus.
After revision: ,,,Antigenic escape, immune escape, immune evasion or escape mutation occurs when the immune system of a host, especially of a human being, is unable to respond to an infectious agent, or, in other words, the host's immune system is no longer able to recognize and eliminate a pathogen such as a virus.