Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DMP 718 - Veterinary Parasitology > Protozoa 2 > Flashcards

Protozoa 2 Flashcards

1
Q

Toxoplasmosis

A

Toxoplasma gondii

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Toxoplasma gondii - Hosts and distribution

A

Felines
Warm blooded animals can be PH
Cosmopolitan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Toxoplasma gondii - Life cycle

A 
Enteroepithelial: Cats only
Schizogony in jejunum and ileum
Gametogony with development of oocysts
Oocysts in feces for 1-2 weeks
Extraintestinal cycle: All warm blooded animals
Ingestion of sporulated oocysts
Sporozoites are released, invade epithelium and enter circulation
Enter tissues cells, become tachyzoites
Become bradyzoites
Enter chronic or carrier stage
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Toxoplasma gondii - PPP

A

Rodent tissue with bradyzoites: 3-10 days

Sporulated oocysts or tachyzoites: 3-7 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Toxoplasma gondii - Modes of infection

A
  1. Ingestion of rodents with bradyzoites
  2. Ingestion of sporulated oocysts or tachyzoites
  3. Transplacental tachyzoites
  4. Transmammary tachyzoites
  5. New intestinal infection from reactivated bradyzoites
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Toxoplasma gondii - Pathology

A

Enteroepithelial: None
Extraintestinal: Brain, eye, lung, liver, LN, myocardium, intestine, pancreas, and abortions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Toxoplasma gondii - Clinical signs

A 
PHs - The great imitator
Ocular
Respiratory
Neuromuscular
Cardiac
Reproductive
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Toxoplasma gondii - Diagnosis

A

Identify oocysts in fecal exam
Serologic test
PCR
IgM or IgG titers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Toxoplasma gondii - Treatment

A

Supportive care
Clindamycin
Pyrimethamine
Trimethoprim-sulfonamide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Toxoplasma gondii - Prevention and control

A

Change litter boxes daily
Cats shedding should be hospitalized
Prevent predation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Toxoplasma gondii - Public health

A
  1. Meat with bradyzoites
    2nd deadliest foodborne illness
  2. Ingestions of sporulated oocysts
  3. Organ transplantation or blood transfusion
  4. Transplacental transmission (tachyzoites)
  5. Goat milk (tachyzoites)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Giardiasis

A

Giardia intestinalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Giardia spp. - Host and distribution

A

Mammals

Worldwide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Giardia spp. - Assemblage

A

A and B in humans
C and D in dogs
F in cats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Giardia spp. - Morphology

A

Trophozoite: Motile, teardrop or pear shaped, flagella
Cyst: Oval, 2 nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Giardia spp. - Life cycle

A

Ingestion of a cyst
Trophozoites encyst in intestine
Pass into lower SI and large intestine and encyst
Cysts passed in feces

17
Q

Giardia spp. - PPP

A

6-8 days

18
Q

Giardia spp. - Pathology

A

Mechanical: Massive number and damage brush border
Biochemical: Toxins interfere
Bacterial overgrowth

19
Q

Giardia spp. - Clinical signs

A 
Highly variable
Diarrhea (soft, greasy, and mucoid)
Weight loss
Flatulence
Dry skin and poor hair coat
20
Q

Giardia spp. - Diagnosis

A

Direct smear (trophozoites)
ZnSO4 flotation
Stain with Lugol’s iodine
Canine fecal ELISA (encystation protein)

21
Q

Giardia spp. - Treatment

A 
None aproved
Fenbendazole
Drontal plus
Metronidazole
MUST BATHE ON LAST DAY OF TREATMENT
22
Q

Giardia spp. - Control

A

Baths

Keeping areas dry

23
Q

Giardia spp. - Public health

A

Nah, but possible

24
Q

Flagellates

A

Tritrichomonas foetus

25
Q

Tritrichomonas foetus - Hosts and distribution

A

Cats

26
Q

Tritrichomonas foetus - Taxonomy

A

Phylum: Protozoa
Subphylum: Sarcomastigophora

27
Q

Tritrichomonas foetus - Morphology

A

3 flagella anteriorly and 1 posterior flagella

28
Q

Tritrichomonas foetus - Transmission

A

Direct fecal-oral contamination with trophozoites

29
Q

Tritrichomonas foetus - Pathogenesis

A

Inflammation in colon produces lymphocytic and plasmacytic enteritis
Mucosal crypt cell necrosis

30
Q

Tritrichomonas foetus - Clinical signs

A

Chronic low bowel diarrhea
Diarrhea is malodorous, pasty to semiformed to watery, may contain blood and mucus
Flatulence
Weight loss

31
Q

Tritrichomonas foetus - Treatment

A

Ronidazole (NDA by FDA)

32
Q

Tritrichomonas foetus - Public health

A

Only one case, immunosuppressed

DMP 718 - Veterinary Parasitology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions