The cyanobacteria-like body (CLB) is a recently described agent, causing a travellers' disease (TD) syndrome characterized mainly by diarrhea. It has been described in travellers who have visited Asia and Latin America. We report 6 cases seen over a 16-month period among those attending a travellers' clinic. All patients suffered from fatigue, watery diarrhea and abdominal cramps; some also lost weight. The episodes were recurrent.