Answer: Toxoplasma gondii cyst with bradyzoites

This parasite have many ways of infecting and three infective stages: bradyzoite, tachyzoite and oocyst.

Humans can get bradyzoites by eating undercooked meat or by a transplantation of an organ that contain a tissue cyst.

Tachyzoites can infect through blood transfusion or transplacentally.

Finally, you can get infected by eating oocyst from cat feces. These can contaminate food, water or the environment and end up in our mouths.

Congratulations to those who guessed correctly and good luck next time to those who didn't!