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Which of the following correctly lists 4 major protozoan classifications
Flagellates, amoeba, ciliates, apicomplexans
the active, motile, feeding stage of a protozoan is called the cyst
false
motion of Giardia trophozoite on a direct fecal smear is described as
falling leaf motion
Eimeria is the protozoan that causes ‘scours‘ and death in young calves
true
Crytosporidium oocysts are difficult to control in the environment becuase they are already sporulated when shed
true
definitive host of Toxoplasma gondii
cats
Sarcocystic neurona causes which neurologic disease in horses
equine protozoal myoencephalitis (EPM)
how is Hepatozoon canis transmitted to dogs
ingestion of an infected tick
what is the only ciliated protozoan parasite of veterinary significance
Balantidium coli
which drug is effective against both Babesia and Cytauxzoon felis infection
imidocarb
which branch of immune system provides an immediate, nonspecific response
innate immune system
which immunoglobulin is responsible for allergic reactions and parasite defense
IgE
Opsonization is the binding of complement proteins or antibodies to a pathogen to enhance phagocytosis
true
which type of vaccines produces the strongest and longest lasting immunity
modified live vaccine (MLV)
which is the period when maternal antibodies have declined but before the animal’s own active immunity has developed
window of susceptibility
when discussing Giardia with a client, which explanation is most accurate
it’s a protozoan parasite that lives in the intestines and causes diarrhea
which apicomplexan protozoa stage allows survival in the environment and transmission to new hosts
oocysts
which best describes “falling leaf“ motion seen under a microscope
slow, graceful movement by Giardia trophozoites
which pair correctly matches the protozoan group and movement type
ciliates - cilia
Entamoeba histolytica is primarily transmitted by
contaminated water or food; fecal oral
which action best prevents Giardia reinfecton in pets
cleaning living areas and bathing pets
protozoa with homoxenous life cycles complete all stages
within one hpst
which of the following statements best summarizes protozoan classifications
grouped by movement and reproduction
cats are the only definitive host for which zoonotic protozoan
Toxoplasma gondii
a woman who is pregnant should avoid changing cat litter because of the risk from which organisms
Toxoplasma gondii
cats shed Toxoplasma gondii oocysts for how long
about 1-2 weeks
dogs can spread Neospora caninum to cattle primarily by
shedding oocysts in feces
what is the most common sign of Neospora infection in cattle
abortion
horses develop ataxia and muscle wasting from which protozoan
Sarcocystic neurona
which protozoan causes hemolytic anemia by destroying RBCs
Babesia canis
Cytauxzoon felis causes death in cats because
blocks blood vessels
the innate, immune system provides
fast, nonspecific defense
which immune cell destroys virus-infected or tumor cells without prior experience
natural killer cell
dendritic cells are critical because they
present antigens to lymphocytes
IgG antibodies are important because they
are transferred in the colostrum
which antibody protects the respiratory and GI tract surfaces
IgA
which statement about vaccines is true
modified live vaccines create stronger immune responses
the “window of susceptibility“ refers to the period when
maternal antibodies have decreased, and vaccines are not protective
ringworm in animal is caused by
Microsporum and Trichophyton
the most common ringworm species in cats is
Microsporum canis
the best way to prevent reinfection with dermatophytes is
cleaning and disinfection all contaminated surfaces
Blastomyces dermatitidis infections start when
spores are inhaled from soil
Crytococcus neoformans is found most often in
pigeon droppings
horses with “swamp cancer“ have lesions caused by
Pythium insidiosum