Comment: You clearly do not understand the life cycle of toxoplasma gondii or how people and animals become infected.

Toxoplasma gondii (Tg) can only complete its life cycle in the intestine of a member of the cat family.  Only cats.  The cat then sheds the Tg oocysts (eggs) in its feces by the tens of millions per cat.  Rats and other mammals do not shed oocysts.  Only cats.  The reason the soil, water, or plant material is contaminated with oocysts is because cats are shedding them.  There would not be environmental contamination of oocysts if cats weren't there to shed them.  Recent research indicates that cats can become reinfected and go through add'l oocyst shedding cycles.  The oocysts are very durable and can remain viable in soil or water for 18 months or more.  In dry conditions they can become aerosolized and inhaled.  Oocysts can also be spread by insects or rodents from feces to food sources.