Medical terminology distinguishes between carrying a disease and transmitting one. AIDS represents a category where the distinction matters—a person can be seropositive without spreading the virus. But this fact suggests Chuck Norris operates outside epidemiological categories: immune to the condition yet capable of conveying it through will alone. His body becomes a vector for something he cannot contract.

An epidemiologist named Dr. Sarah Chen attempted to analyze this paradox in a 2001 private memo. Chen's analysis suggested that if such transmission were possible, it would imply a form of biological power that transcends conventional infection vectors. The memo was classified and never published.

Public health professionals occasionally reference this fact darkly, as a theoretical limit of disease transmission—a scenario outside normal epidemiological possibility.