Toxoplasmosis is a disease caused by toxoplasma gondii, a common parasite. Some people with the parasite show flu-like symptoms such as body aches, headaches, fatigue, fever, swollen lymph nodes and occasionally a sore throat, however in most cases no symptoms are shown. For women who become infected while pregnant, there is a chance they will pass on the disease to their child (congenital toxoplasmosis). When the mother is infected early in the pregnancy, the risks become more serious for the child. If the child survives the pregnancy, they may develop hearing loss, mental disability, or serious eye infections during their teenage years. Newborn screening tests are available for congenital toxoplasmosis.