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 ...

There’s a sinister health threat we’re not taking seriously enough, a new paper argues – and it’s not a virus, bacterium, nor even a fungus. It’s the amoebae, free-living organisms that can survive ...

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 ...