It infects nearly one-third of the global population, yet its microscopic size makes the parasite difficult for scientists to study. That parasite is Toxoplasma gondii, a widespread organism that ...

A single-dose pill called acoziborole cured most sleeping sickness patients in a major trial, even when the parasite reached the brain.

A neurological disease spread by rats and other animals may have become established in San Diego County.

When Dr. Isaac Chikwanha was a kid in Zimbabwe, he got schistosomiasis. At the time, he didn't think about the cause of this parasitic disease: a worm that penetrates your skin and takes up residence ...

But what can it successfully treat? What is ivermectin? The drug is a small organic chemical that can be extracted from the ...