Risks to the baby and the effects

The chances of infection during pregnancy is thought to be about 0.2%.  If infection occurs in a non-immune mother during pregnancy, the baby does not always become infected or suffer any consequences, however in about 35% of cases the child will be infected and can suffer serious brain and eye development problems.  Even though most infected children will appear normal at birth, sight & hearing  problems develop as well as learning difficulties.  

A small percentage of infected babies will display problems immediately at birth.  These cases are the most severe and usually result in either death or very serious mental & physical health problems.

NOTE: The risks of toxoplasmosis infection and subsequent damage to the baby are very low overall and should not be a cause of stress in expecting parents.

Screening/diagnosis

A simple blood test can provide an indication of immunity.  In the USA and UK, testing for immunity is not a standard procedure offered to everyone.

In many European and South American countries a blood test is performed at the beginning of every pregnancy to ascertain whether the mother should alter her eating habits during pregnancy (avoiding raw/uncooked meats etc).

Unfortunately, if a positive test is found (immunity is present), a further round of testing is required to discover whether or not the infection is recent or from more that a year ago.

1. Toxoplasmosis - Causes & symptoms

2. Screening, Risks & Diagnosis

3. Treatments & Avoidance Guidelines