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35 Cards in this Set
- Front
- Back
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What are the two general groups of parasites called?
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Microparasites
Macroparasites |
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What types of parasites exist as microparasites and why can these parasites be difficult to treat?
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Viruses and bacteria;Hard to see and rapid generation time
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What types of parasites exist as macroparasites. Describe them.
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Flatworms, tapeworms, roundworms, ticks, fleas, etc; Large and easy to see, long generation times, don't spend all of life in host
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True or False
Parasites usually kill their host. |
False
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_________ is a viral disease usually found in livestock—but if it spreads to ungulates, it can be deadly. They are not resistant to the virus and are highly susceptible to the virus
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Rinderpest
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Trypanosoma brucei is a parasitic protist species that causes African trypanosomiasis (or _______ ______) in humans and Animal African Trypanosomiasis, in animals in Africa
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Sleeping Sickness
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obligate parasites have two hosts - an _____ vector and ________ host.
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Insect; Mammalian
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Trypanosoma features a unique and notable _______ ______ _____ coat in order to avoid the host's immune system
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Variable Surface Glycoprotein
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America’s form of Trypanosomiasis is called Chagas’ disease (T. cruzi) – causes __________ ________in mammals (particularly humans).
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Cardiovascular Failure
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What is the most prevalent protist parasite found in humans—due to our interactions with wild animals?
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Giardia
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What is a direct life cycle?
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No intermediate host is needed
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Nematodes have a ______ life cycle.
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Direct
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Nematodes are also called what?
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Roundworms
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The most well-known nematode/roundworm is called what?
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Trichinella
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What is the name of the bacterium that was responsible for the Plague, which has killed more people than any other zoonotic disease?
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Yersenia pestis
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What is the primary vector for Yersenia pestis?
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Fleas
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Name the three types of plagues.
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Bubonic
Septicemic Pneumonic |
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What system does Bubonic Plague infect?
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Lymphatic
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Which plague is the most common of the three?
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Bubonic
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What system does the Septicemic Plague infect?
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Bloodstream
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What system does the Pneumonic Plague infect?
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Respiratory, particularly the lungs
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Yersinia pestis is Gram- Negative/Positive.
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Negative
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Definition of epizootic
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An epidemic arising from a transfer of disease from animals
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________, other than bats, are the main reservoir for rabies.
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Carnivores
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What is the highly contagious and sometimes fatal viral disease of cloven-hoofed animals?
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Feral Hog Disease (Foot and Mouth Disease)
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____ are the animals that spread the disease in the US.
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Hogs
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_______ is a viral neural disease.
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Rabies
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Rabies causes acute ________ in warm-blooded animals.
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Encephalitis
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True or False
Foot and Mouth Disease virus continually evolves and mutates, thus creating difficulties in making effective vaccinations. |
True
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Chronic Wasting Disease is caused by a ________.
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Prion
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What is a prion?
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An infectious agent that is composed primarily of protein.
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Chronic Wasting Disease is currently found in which two Cervids?
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Deer
Elk |
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Other than Chronic Wasting Disease, name two other diseases that are caused by prions.
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Bovine Spongiform Encephalopathy (Mad Cow Disease)
Creutzfeldt Jakob Disease |
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All known prion diseases affect the structure of the ____or other ________ tissue and are currently untreatable and are always fatal.
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Brain; Neural
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Describe the process in which prions are hypothesized to propagate.
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Reforlding abnormally into a structure which is able to convert normal molecules of the protein into the abnormally structured form.
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