Toxoplasmosis is a disease caused by infection with the Toxoplasma gongii parasite, one of the world’s most common parasites.
The infection is normally harmless but in rare cases it can cause serious problems. Your risk is increased if:
- you get infected when you are pregnant: Toxoplasmosis can cause miscarriage. If it spreads to your baby it can cause serious complications, especially if you catch it early in pregnancy. Read more about toxoplasmosis in pregnancy.
- your immune system is weakened: For example, if you have HIV, have recently had an organ transplant or you're having chemotherapy.