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Parasit basics- LGM > Protozoa > Flashcards

Protozoa Flashcards

1
Q

Giardia intestinalis
host?
site?
buzz words?

A

“Beaver fever”
dog, cat, cattle, humans –> “assemblage specific”
A: beavers, guinea pigs, slow loris *ZOONOTIC
B: slow loris, siamangs *ZOONOTIC
E: cattle, hoofed animals
SI (trophozoite)
fecal float with zinc sulfate; overall asymptomatic

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2
Q

Spironucleus (Hexamita)
host?
site?
buzz words?

A

Fowl (NOT CHICKENS)
LI
dehydration, emaciation, CONVULSIONS FROM HYPOGLYCEMIA

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3
Q

Tritrichomonas foetus (in cattle)
host?
site?
buzz words?

A

“Cattle STI”
cattle
genital tracts: uterus/vagina, prepuce
bulls are carriers; cull the bull, rest the cow; EARLY TERM ABORTION; self- cure; REPORTABLE

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4
Q

Tritrichomonas foetus (in cats)
host?
site?
buzz words?

A

cats
distal ileum, colon
fecal-oral route; normal appetite; pure breed/old/young at risk

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5
Q

Trichomonas
host?
site?
buzz words?

A

“Canker (pigeons)/ Frounce (raptors)”
fowl
oral-nasal cavity, upper GI
modes of infect 1. pigeon milk 2. drinking water 3. raptor feed on prey bird
yellow cankers in mouth; DON’T FEED HEADS/CROPS TO RAPTORS

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6
Q

Histomomas
host?
site?
buzz words?

A

“Blackhead”
turkeys
cecum and liver
HETERAKIS IS VECTOR (trophozoites of Histo in eggs of Heter); no turkeys on ground of chickens for 2+ yrs

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7
Q

Trypanosoma cruzi
host?
site?
buzz words?

A 
"Chagas disease"
"take a tryp to chagas (vegas)"
dogs, cats, humans *ZOONOTIC
--> ASSASSIN/ KISSING BUG VECTOR
bug bites, creating a wound, defecates in wound transmitting T. cruz; blood smear; xenodiagnosis; heart disease in dogs
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8
Q

Leishmania spp
host?
site?
buzz words?

A

“kala-azar (visceral)/ oriental sore (cutaneous)”
dogs, humans
where macrophages grow: skin, liver, spleen
SAND FLY VECTOR; ulcers, cachexia

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9
Q

Isospora canis
host?
site?
buzz words?

A

Coccidia
FH: dogs, PH: rodents
SI
coccidiosis in young, coccidiasis in adults; SEVERE DIARRHEA

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10
Q

Isospora suis
host?
site?
buzz words?

A

Coccidia
pigs
SI
1-2w piglets affected; HIGH morbidity, LOW mortality; yellow/fluid diarrhea

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11
Q

Eimeria of swine
host?
site?
buzz words?

A

pigs
SI
immunity; avoid overcrowding
diarrhea

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12
Q

Eimeria bovis
host?
site?
buzz words?

A 
cattle
LI
ovoid, micropyle present
coccidiosis: preventable; coccidiasis: inevitable
diarrhea
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13
Q

Eimeria zuernii
host?
site?
buzz words?

A 
cattle
SI + LI
spherical, micropyle absent
coccidiosis: preventable; coccidiasis: inevitable
diarrhea
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14
Q

Eimeria of sheep/ goats
host?
site?
buzz words?

A

same as cattle
SI + LI
diarrhea

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15
Q

Eimeria leukarti
host?
site?
buzz words?

A

equine
SI
intermittent diarrhea in foals; difficult to float oocysts

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16
Q

Eimeria tenella
host?
site?
buzz words?

A

chickens
cecum
most path of avian Eimeria; HIGH morbid, HIGH mortal in young birds
bloody diarrhea; birds huddle; ruffled feathers

17
Q

Eimeria necatrix
host?
site?
buzz words?

A

chickens
SI
bloody poo; dehydration

18
Q

Eimeria brunetti
host?
site?
buzz words?

A

chickens

ileum, cecum, rectum

19
Q

Toxoplasma gondii
host?
site?
buzz words?

A

FH: cats, IH: humans, warm blooded animals (rodents, birds) *ZOONOTIC
cat infection: eating infected IH
human infection: foodborne (meat/vegs), water, blood/organ, transplacental
intestinal and extraintestinal tissues
CATS IMMUNE after 1st infection, shed once in lifetime
abortion in sheep/goats

20
Q

Sarcocystis spp
host?
site?
buzz words?

A

FH: cats, dogs, humans IH: cattle, herbivores
“predator - prey cycle”
IH: in muscle, FH: in GI
LATE TERM ABORTION IN COWS

21
Q

Sarcocystis neurona
host?
site?
buzz words?

A

“Equine Protozoal Myeloencephalitis (EPM)”
FH: opossum, IH: cats, AH: horses
in horses, schizonts develop in CNS
seizures, lameness, paresis; western blot on CSF; opossum control

22
Q

Neospora spp.
host?
site?
buzz words?

A

FH: dogs, IH: dogs, ruminants, horses
transplacental in dogs, cattle
FH: GI, IH: CNS
MIDTERM ABORTION IN COWS; encephalitis most common

23
Q

Cryptosporidium
host?
site?
buzz words?

A 
"Crypto"
cattle, humans 
GI, respiratory tract
autoinfection: ingestion, inhalation
acid fast stains: Ziehl-Neelsen = red; NO Tx KNOWN
24
Q

Hepatozoon spp.
host?
site?
buzz words?

A

“Dog-eat-tick”
DH: Amblyomma maculatum, IH: dog (H.americanum) cat
gamonts in blood, other tissues/muscle

25
Q

Babesia canis
host?
site?
buzz words?

A 
"unhappy RBC's"
dogs
Trophozoites or merozoites in RBCs
Rhipicephalus sanguineus is vector (bite)
RBC destruction, anorexia, anemia
26
Q

Babesia bigemina
host?
site?
buzz words?

A

“Texas cattle fever”
cattle
Trophozoites or merozoites in RBCs
Rhipicephalus (Boophilus) is vector (bite)
RBC destruction, anorexia, anemia; INVERSE AGE SUSCEPTIBILITY

27
Q

Theileria (Cytauxzoon) felis
host?
site?
buzz words?

A

cats
Amblyomma americanum tick is vector
found in blood
intracellular –> enlargement of RBCs –> vessel OCCLUSION/BLOCKAGE –> organ failure

28
Q

Leucocytozoon spp
host?
site?
buzz words?

A

domestic and wild water fowl
blackflies and no-see-ums are vectors
Brain, heart, lung, kidney, gizzard, intestine, lymphoid tissue, blood cells… WHITE BLOOD CELLS
fatal to young ducks and geese, adults are carriers

29
Q

Balantidium spp.
host?
site?
buzz words?

A

“Babe parasite”
pigs
LI
kidney-bean shaped trophozoite nucleus; asexual

Parasit basics- LGM (8 decks)

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