Human pythiosis in Srinagarind Hospital: one year's experience.

We have reported four cases of human pythiosis arteritis from Srinagarind Hospital, Khon Kaen, Thailand. This unusual human infection occurring perhaps exclusively in thalassemia and hemoglobinopathy patients, should be noted by physicians, who work in areas with a high incidence of hemoglobinopathy, and for patients who present with unexplained arterial insufficiency. As our reported cases occurred within only one year, this condition may be more common than originally suspected and found more frequently if actively searched for.