revention
As it is not known how the infection is spread, the best advice is to maintain good personal hygiene practices, prepare food carefully and avoid drinking water that may not be clean.
Since this infection may be transmitted through contaminated food and water it is advisable to exclude people with Blastocystis from childcare, preschool, school and work until there has been no diarrhoea for 24 hours. If working as a food handler in a food business, the exclusion period should be until there has been no diarrhoea or vomiting for 48 hours.