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21 Cards in this Set
- Front
- Back
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Plasmodium |
- in host, cells produce pigment hemozoin - microgametocytes and macrogametocytes - discovered by Alphonse Laverne species: falciparum, ovale, malaraie, vivax Vectors: Anopheles mosquito |
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Ookinetes |
Zygotes of plasmodium |
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Oocysts |
Hardy, thick walled stage of the life cycle of oocidian parasites eg. Cryptosporidium results from Sporogony |
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merogony |
Aka schizogony fission of sporozoites Multiple mitoses and cytokinesis Asexual replication of sporozoites to form merozoites |
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Symptoms of plasmodium |
Fever Chills chronic relapsing course anemia enlarged spleen |
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P. Vivax |
second most common Worldwide |
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P. Falciparum |
Most common Most severe and deadly - Africa, Asia & Latin America blackwater fever |
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P. Malariae |
Less common patchy distribution worldwide |
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P. Ovale |
Least common |
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Life cycle |
Asexual cycle - Schizogony - Injection of sporozoites Sexual cycle Sporogony - ingestion of gametocytes from infected person |
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Definitive host |
Female anopheles mosquito |
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Intermediate host plasmodium |
Human |
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Babesiidae family |
Babesia bigemina Texas cattle fever Carried by ticks (rhipicephalus) |
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Sporogony |
Multiple fission of the zygote |
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Gametogony |
Production of gametes |
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Sporozoite |
Daughter cell resulting from sporogony Invasive form |
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Zygote |
Fusion of gametes Meiosis after fusion |
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General life cycle |
Sporozoites -> merozoites -> gametes -> zygote Sporogony ... merogony...gametogony |
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Taxoplasma gondi |
No host specificity: any mammal Two phases: intestinal and extraintestinal. |
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Transmission |
Ingestion of oocysts (infection stage) |
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Plasmodium treatment |
Chloroquine |
