Toxoplasmosis and Global Health
Introduction
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There are two parts to the life cycle of Toxoplasma Gondii. The first component is the sexual part of the life cycle, or the Infective Stage. This can only take place in the Felidae family-- a genus composed of wild and domesticated cats. The microbe is consumed by these felines and then survives passage through the stomach. After passing through the stomach, the microbe infects epithelial cells in the small intestine. The microbes undergo sexual reproduction and form oocycsts, the fertilized cyst of a microbe. This oocyst is shed with the feline's feces, where Intermediate hosts in nature such as birds and rodents ingest these contaminated oocysts. In the intermediate host's body, the parasite transforms into a tachyzoite shortly after transmission. A tachyzoite is a mobile, spore-forming parasite that forms tissue cysts. A cat becomes infected with this microbe when it ingests an intermediate host that is harboring these tissue cysts. The disease is spread again when a cat defecates, and other species are exposed.
The asexual part of Toxoplasma Gondii's life cycle begins when another mammal, usually a human, ingests these contaminated feces by various methods. The parasite enters cells in the intestine, is transferred to the blood stream, and is then distributed throughout the body. These microbes can have detrimental, even fatal, affects on certain individuals, and the hardiness of the cyst means that it can withstand many environments and infect various individuals.
Disease Transmission
Include some current research in each section.
Disease Transmission
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Treatment
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Conclusion
Overall paper length should be approximately 2,000 to 2,500 words.
Include at least two data figures.
Use professional sources, including at least two research studies.
References
Edited by student of Joan Slonczewski for BIOL 191 Microbiology, 2009, Kenyon College.
