News reports this morning describe how shocked doctors removed a live worm from a woman's brain in a Canberra hospital last year. The woman had previously been admitted to hospital with stomach symptoms, dry cough and night sweats and months later experienced depression and forgetfulness that led to a brain scan.
When a person is infected these worms enter the bloodstream and then hit the lungs. From the bronchi in the upper lungs, they are swallowed with secretions. Once in the gut and small bowel they can
. This is because they are consuming nutrients and affecting iron absorption. They also release an anticoagulant that stops the human host's blood clotting and causes tiny amounts of blood loss.30–50% of people are infected with Toxoplasma. Most people will be asymptomatic but many carry the signs of infection.
The parasites can remain in the body for years as tiny tissue cysts. These cysts can be found in brain, heart and muscle. Infants can be born with serious eye or brain damage if their mothers are infected during pregnancy. People with compromised immunity—such as from AIDS or cancer treatment—are also at risk of illness from infection via pet cats or uncooked meat.Tapeworms can infect different parts of the body including the brain. This is calledand is the leading cause of epilepsy worldwide.
Tapeworm larvae can infect muscle and soft tissue. Brain tissue can provide a home for larvae because it is soft and easy to get to via blood vessels. Brain infection can cause headaches, dizziness, seizures,
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