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15 Cards in this Set
- Front
- Back
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4 methods of Cryptosporidium transmission and which two are most important |
Feces infected organs Fomites Water |
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5 factors increasing the risk of water borne transmission of Cryptosporidium |
small oocyst low infective dose oocyst numbers excreted close associations between humans and animals Chlorine resistant |
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Where does the oocyst of cryptosporidium live |
inside the cell membrane but outside the cytoplasm of cells in the intestine or respiratory tract |
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Cryptosporidium life cycle |
oocytes enter host --> sporozoites excyst --> sporozoite reaches cell and becomes trophozoite --> schizogony occurs creating schizonts -->schizonts release merozoites --> microgamates form and combine to form a zygote --> oocyst is released |
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What stage of Cryptosporidium enters the host |
Oocyst |
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What stage of Cryptosporidium actually infects the cells |
Sporozoites |
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Are Sarcocystis hetero or homoxenous |
hetero |
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Sarcocystis DH |
Predators |
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Sarcocystis IH |
Prey |
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Where do Sarcocystis merizoites encyst |
In the muscles |
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Where are Sarcocystis schizonts found |
in the endothelial cells/blood |
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can Sarcocystis be zoonotic |
Yes |
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Main cause of EPM |
Sarcocystis Neurona |
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Less common cause of EPM |
Neospora Hughesi |
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What is special about the inflammation caused during EPM |
Nonsuppurative inflammatory reaction |
