ANFS251 Lecture Notes - Lecture 9: Liver Fluke, Immunosuppression, Viral Tegument
12 Sep 2017
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Document Summary
Parasitology, protozoa and helminths, mechanisms of immunity: commensalism - a relation between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter. In mutualism both species benefit from the relationship. Irradiation: most parasites and viruses are killed by, heat treatment, prevention through, use of potable water only good sanitation good personal hygiene feeding animals good clean food (not garbage) keeping feral animals away from pasture lands. Single cell eukaryotes: 50,000 species (10,000 are parasitic, as cysts they are able to survive harsh conditions. They can survive exposure to extreme temperatures, harmful chemicals or live without food, water, or oxygen for a period of time. *these are both sexual and asexual reproductive cycles: protozoa are single celled organisms that only divide within a host. Apicomplexa: no permanent motility, organelle complex at anterior end, examples, plasmodium (malaria, toxoplasma (toxoplasmosis, eimeria. 3rd leading cause of death due to foodborne illness.
