evidence: Does having an autoimmune disease mean a person also has a parasite? No, that's not true: An infectious disease specialist told Lead Stories that "parasitic infections are not causes or triggers of autoimmune disease." While some evidence suggests that "parasitic infections can serve as a trigger factor of autoimmune reactivity," there is no scientific consensus that parasites cause all autoimmune diseases. [...] A narrator in the one-minute, 55-second video falsely states that the "number one sign of having parasites is" is having an "autoimmune condition." While there is some scientific evidence to suggest that "parasitic infections can serve as a trigger factor of autoimmune reactivity by several mechanisms," it is false to say that parasites cause all autoimmune diseases.