Tourette syndrome is associated with the bacterium Streptococcus. Aggravating or contributory microbes in Tourette's may include the bacteria Mycoplasma pneumoniae, Chlamydia pneumoniae, Chlamydia trachomatis, and the protozoan parasite Toxoplasma gondii.
Irritable bowel syndrome (IBS) is associated with the protozoan parasite Giardia lamblia, and pathogenic strains of the protozoan parasite Blastocystis hominis.... more