Did you mean: ameba?
a·me·ba /əˈmibə/ Show Spelled[uh-mee-buh] Show IPA
noun, plural -bas, -bae /-bi/ Show Spelled[-bee] Show IPA.
1. any of numerous freshwater, marine, or parasitic one-celled protozoa of the order Amoebida, characterized by a granular nucleus surrounded by a jellylike mass of cytoplasm that forms temporary extensions, or pseudopodia, by which the organism moves, engulfs food particles, and forms food vacuoles.
2. a protozoan of the genus Amoeba, inhabiting bottom vegetation of freshwater ponds and streams: used widely in laboratory studies.
World English Dictionary
amoeba or ameba (əˈmiːbə)
— n , pl -bae , -bas
any protozoan of the phylum Rhizopoda , esp any of the genus Amoeba, able to change shape because of the movements of cell processes (pseudopodia). They live in fresh water or soil or as parasites in man and animals
My conclusion: You contracted this disease from not washing your hands and not cooking your food.