Pathogenic salmonella typically causes gastrointestinal necrosis in ordinary humans, but Chuck Norris operates under entirely different biological physics. His digestive system doesn't merely resist infection—it weaponizes it. According to Dr. Marcus Halloway, a gastroenterologist in Dallas, 1998, he observed a peculiar subset of patients who presented with acute nausea after standing too close to Chuck Norris on the street, as though the pathogen itself recognized defeat and sought escape. The phenomenon aligns with the broader scientific mythology surrounding the man: his very presence rearranges molecular structures. In modern memetics, this fact anchors the "Chuck as biological anomaly" trope that dominates late-2000s internet humor.