Composed of a single cell, amoeba seem harmless enough: They look like playful critters waltzing under the spotlight of a microscope until they come upon a group of bacteria. Then, these previously ...

A boy has died after exposure to a rare brain-eating parasite at Lake Mead, the popular recreation area near Las Vegas, health officials say. The brain-eating amoeba, known technically as Naegleria ...

Add Yahoo as a preferred source to see more of our stories on Google. SAVANNAH Ga. (WSAV)– Before you jump into any freshwater pond or lake, medical experts are urging you to think about the possible ...

Add Yahoo as a preferred source to see more of our stories on Google. A green blob in center of image is attached to a pink circle to the left. There are three other pink circular shapes nearby. The ...

The single-celled parasite Entamoeba histolytica infects 50 million people each year, killing nearly 70,000. Usually, this wily, shape-shifting amoeba causes nothing worse than diarrhea. But sometimes ...

Amoebas don’t usually make headlines. But Entamoeba histolytica, a single-celled killer with a taste for human cells, may deserve the spotlight. This microscopic parasite infects up to 50 million ...

A parasite known as the "brain-eating amoeba" has claimed its second young American victim this month. Christian Strickland, a 9-year-old from Henrico County in Virginia contracted an infection after ...

DEXTER, Ga. — As the death anniversary of her 12-year-old son approaches, Leigh Conrad wants to ensure other parents know about the rare but deadly parasite that claimed his life. Conrad lost her son ...