A common parasite hiding in the brain turns out to be far more active and organized than anyone realized.

A team of scientists at the University of California, Riverside, has discovered that Toxoplasma gondii, a parasite estimated to infect up to one-third of the world’s population, is far more biologically complex than previously understood. Their findings, published in Nature Communications, provide new insight into how the parasite causes disease and why it has proven so difficult to eliminate with current treatments.

How Toxoplasmosis Spreads in Humans.