Amoebiasis is one of the most deadly parasitic diseases in the world (after malaria and bilharzia). Around 10% of the world's population is thought to be infected by parasitic amoebae of the Entamoeba genus, the most pathogenic of which is Entamoeba histolytica, the agent of amoebiasis. Transmission: via faeces, poorly cleaned food and various types of dirt; it enters the mouth, travels to the intestines and develops there, burrowing through the intestinal wall. Symptoms: Abdominal pain and bloating, prolonged feeling of fullness, frequent diarrhoea and possibly blood loss... Hygiène et santé’ programme, broadcast on Don Bosco radio.