Sarcocystis nesbitti

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Sacrocystis nesbetti sarcocysts.jpg


==Sarcocystis nesbitti==

Sarcocystis nesbitti is a species of parasitic protozoa in the genus Sarcocystis. It is known to cause sarcocystosis in humans and other animals. This species is part of the Apicomplexa phylum, which includes other notable parasites such as Plasmodium and Toxoplasma.

Life Cycle[edit | edit source]

The life cycle of Sarcocystis nesbitti involves two hosts: a definitive host and an intermediate host. The definitive hosts are typically carnivores, where the parasite undergoes sexual reproduction. The intermediate hosts are usually herbivores or omnivores, where the parasite forms sarcocysts in the muscle tissue.

Definitive Host[edit | edit source]

In the definitive host, Sarcocystis nesbitti undergoes sexual reproduction in the intestinal tract. The oocysts are shed in the feces and can contaminate the environment.

Intermediate Host[edit | edit source]

The intermediate host becomes infected by ingesting sporocysts from the environment. Inside the intermediate host, the parasite migrates to the muscles and forms sarcocysts, which are the infectious stage for the definitive host.

Pathogenesis[edit | edit source]

Sarcocystis nesbitti can cause sarcocystosis in humans, which may lead to symptoms such as fever, myalgia, and respiratory distress. The severity of the disease can vary depending on the number of parasites and the immune status of the host.

Epidemiology[edit | edit source]

Sarcocystis nesbitti has been reported in various regions, including parts of Asia and Africa. Human infections are relatively rare but can occur in areas where the parasite is endemic.

Diagnosis[edit | edit source]

Diagnosis of Sarcocystis nesbitti infection can be challenging. It often involves serological tests and molecular techniques such as PCR to detect the parasite's DNA in clinical samples.

Prevention and Control[edit | edit source]

Preventing Sarcocystis nesbitti infection involves measures to avoid contamination of food and water with feces from infected definitive hosts. Proper cooking of meat can also reduce the risk of transmission.

Related Pages[edit | edit source]

Template:Sarcocystis

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Contributors: Prab R. Tumpati, MD