An Egyptian research team has noted a significantly higher prevalence of Blastocystis infection in IBS patients. The researchers note in their study of 150 samples from IBS patients with 160 controls, that ” 42 cases (28%) showed B. hominis and 2 cases (1.3%) for D. fragilis infections. After performing the culture methods for B. hominis and D. fragilis, detections increased to 50 cases (33.3%) and 3 cases (2%), respectively. While among 150 controls 18 (12%) positive samples were detected as B. hominis.” The study was published in the Iranian Journal of Parasitology.