What disease does Trypanosoma cruzi cause?
Chagas disease is caused by the parasite Trypanosoma cruzi, which is transmitted to animals and people by insect vectors and is found only in the Americas (mainly, in rural areas of Latin America where poverty is widespread). Chagas disease (T. cruzi infection) is also referred to as American trypanosomiasis.
What is the definitive host for Trypanosoma cruzi?
Hosts/Vectors Apart from humans, a number of mammals serve as reservoir hosts for T. cruzi, e.g. armadillos, opossums, raccoons, woodrats, some other rodents, and domestic dogs. Common triatomine vector species for trypanosomiasis belong to the genera Triatoma, Rhodnius, and Panstrongylus.
What type of parasite is Trypanosoma cruzi?
The protozoan parasite, Trypanosoma cruzi, causes Chagas disease, a zoonotic disease that can be transmitted to humans by blood-sucking triatomine bugs.
What cells do T. cruzi infect?
cruzi can enter the host cell, mainly in macrophages, by phagocytosis. The recognition of Toll-like receptors 2 by trypomastigotes is also capable of inducing a phagocytic process (39) and initiating an inflammatory pathway.
What organs does Chagas disease affect?
The heart is the most commonly affected organ in persons with chronic Chagas disease. Autopsy may reveal marked bilateral ventricular enlargement, often involving the right side more than the left, in the heart of patients who die of chagasic heart failure (see image below).
What is the vector for Trypanosoma cruzi?
Triatomine bugs. The Triatominae (Hemiptera, Reduviidae), still named kissing bugs, are blood-sucking insect vectors of T. cruzi.
Is Trypanosoma cruzi a bacteria?
Trypanosoma cruzi is a species of parasitic euglenoids. Among the protozoa, the trypanosomes characteristically bore tissue in another organism and feed on blood (primarily) and also lymph….
| Trypanosoma cruzi | |
|---|---|
| Species: | T. cruzi |
| Binomial name | |
| Trypanosoma cruzi Chagas, 1909 |
How does Trypanosoma cruzi enter a human host?
T. cruzi is transmitted to humans through contaminated urine and feces excreted by the insect vectors during a blood meal.
How is Chagas diagnosed?
The diagnosis of Chagas disease can be made by observation of the parasite in a blood smear by microscopic examination. A thick and thin blood smear are made and stained for visualization of parasites.
Where is Trypanosoma cruzi found in the body?
Chagas (CHAH-gus) disease is an inflammatory, infectious disease caused by the parasite Trypanosoma cruzi. This parasite is found in the feces of the triatomine (reduviid) bug.
What organs are affected by Chagas disease?
Most of the complications are related to muscle changes (muscle atrophy, fibrosis, and inflammation) caused by the parasites in two body organs, the heart, and the GI tract. Consequently, heart failure and esophageal and colon enlargement (megaesophagus and megacolon) are serious complications of Chagas disease.
Can blood test detect Chagas?
If you have the signs and symptoms of Chagas disease, blood tests can confirm the presence of the parasite or the proteins that your immune system creates (antibodies) to fight the parasite in your blood.
What part of the human body does the Trypanosoma invade?
Second stage or neurological? phase: this stage begins when the trypanosome parasites cross from the blood-brain barrier into the spinal fluid, infecting the central nervous system including the brain.