We're talking about toxoplasmosis, a disease caused by toxoplasma gondii.

我们说的是弓形虫病，一种由弓形虫引起的疾病。

As we know it today, toxoplasma gondii is a parasite whose infective life cycle depends on cats.

现今，我们知道，弓形虫这种寄生虫的生命周期循环必须仰赖猫。