Symptomatic infection with Blastocystis sp. subtype 8 successfully treated with trimethoprim–sulfamethoxazole.

The article reports about a medical research related to the treatment of Blastocystis with trimethoprim sulfamethoxazole (TMP/ SMX) and metronidazole. It is stated that Blastocystis is a common, enteric, and unicellular parasite which exhibits extensive genetic diversity. After the treatment with both TMP/ SMX and metronidazole, faecal specimens were colleceted to for parasitological, bacteriological and viral examination for the presence of Blastocystis. Sigmoidoscopy was also performed. In the end it was found that TMP/SMX can a suitable alternative to metronidazole in the treatment of symptomatic Blastocystis infections.