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Toxoplasmosis during pregnancy

Toxoplasmosis is a parasitic infection caused by a single celled organism or protozoan called Toxoplasmosis gondii.

While the disease causes few problems in adults, it can be dangerous to people who are immunosuppressed including pregnant women and people who are HIV positive.

Symptoms and diagnosis of toxoplasmosis

In most cases, some experts suggest up to ninety percent (9 in 10), toxoplasmosis is asymptomatic. Symptoms of toxoplasmosis are often mistaken for mononucleosis. These include swollen lymph nodes, fever and fatigue. If you are concerned that you may have contracted toxoplasmosis, your doctor will be able to confirm the diagnosis with a simple blood test.

How toxoplasmosis is transmitted

Toxoplasmosis is a common infection which can be transmitted through improper hygiene. Only about 0.2 - 0.7 percent (2 - 7 in 1000) pregnant women contract toxoplasmosis annually. About eighty percent (8 in 10) of the population and probably all cat owners already have toxoplasmosis antibodiesA protein immunoglobulin which is produced naturally by the body and is essential to the immune system by working to combat foreign bodies, germs or bacteria. They are produced by thelymphoid tissue and consist of different classes each of which is designed to fight specific antigens. They include agglutinins, bacteriolysins, opsonins and preciptin.
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.

If you have a cat you should ask your doctor to perform a screening test after you have confirmed your pregnancy. The presence of antibodiesA protein immunoglobulin which is produced naturally by the body and is essential to the immune system by working to combat foreign bodies, germs or bacteria. They are produced by thelymphoid tissue and consist of different classes each of which is designed to fight specific antigens. They include agglutinins, bacteriolysins, opsonins and preciptin.
Visit our comprehensive glossary for more pregnancy terms and definitions.
means that you are immune, in which case the disease will not affect you. If the antibodiesA protein immunoglobulin which is produced naturally by the body and is essential to the immune system by working to combat foreign bodies, germs or bacteria. They are produced by thelymphoid tissue and consist of different classes each of which is designed to fight specific antigens. They include agglutinins, bacteriolysins, opsonins and preciptin.
Visit our comprehensive glossary for more pregnancy terms and definitions.
are not present there is a risk of infection which can be minimized by following some simple guidelines.

How to avoid toxoplasmosis infection

Pet Owners: If you are a cat owner avoid emptying your cat's litter box. If you must clean the litter box you should exercise caution and wear disposable gloves, use a pooper-scooper, and wash your hands in disinfectant when you are finished. The organism resides in infected feces and may be transmitted through improper handling. You should always wash your hands after petting your cat and other people's pets. Treat your cat regularly for worms and parasites, especially if it hunts. Do not share food with your pets, and make sure that they do not eat from the same plates that you eat from. Make sure that all pets stay off kitchen counters and other surfaces where food is prepared.

Gardeners: If you like to garden you should wear gloves. Avoid gardening in soil that is used by cats or dogs and be sure to wash your hands when you are finished.

Handling Food: Avoid eating raw or undercooked meat and poultry: meat should be cooked to an internal temperature of at least 140° F (54° C). Wash your hands after handling raw meat and clean kitchen surfaces and wooden utensils. Since toxoplasmosis may be present in soil it is important that all vegetables and fruit are thoroughly washed. All dairy products, including cheese and yogurt should be made from pasteurized milk.

How toxoplasmosis will affect pregnancy

If you contract toxoplasmosis before conceiving, your baby is safe from infection. The risk of contracting toxoplasmosis during pregnancy is very low: less than 0.5 percent (5 in 1000). There is a risk of transmitting the infection to the fetus, but this is more likely if the infection is contracted during the third trimester. Toxoplasmosis during pregnancy increases the risk of miscarriage or a baby born with the infection: the rate of congenital infection is 0.01 percent (1 in 10,000).

Ten percent of infected babies risk severe problems. These include hydrocephalusA congenital abnormality in which excessive fluid collects on the brain enlarging the skull. Surgical treatment with a survival rate greater than 80% involves a combination of procedures including correction of the ventricular obstruction, reduction of the production of cerbralspinal fluid and the installation of shunts to drain excess fluid to the right atrium of the heart or peritoneal cavity.
Visit our comprehensive glossary for more pregnancy terms and definitions.
, blindness and scarring of brain tissue which may result in brain damage. Some babies who show no signs of infection at birth develop eye problems that may result in blindness.

Treating toxoplasmosis during pregnancy

If you are concerned that you may have contracted the disease, ask your doctor to perform a blood test to confirm the diagnosis. Additional testing will be required and your obstetrician may choose to consult a specialist in maternal fetal medicine. A visit to a genetic counselor may be advised to determine the risk of congenital infection, but is not usually possible to confirm the diagnosis until birth. Some tests may be performed to detect whether your baby has been infected.


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