Brainscape's Knowledge GenomeTM

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


See full index

Parasitology > Zoonotic parasites of pigs > Flashcards

Zoonotic parasites of pigs Flashcards

1
Q

What are zoonotic parasites of pigs?

A

*Trichinella spirialis
*Taenia solium
*Balantidium coli

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

What are protozoa + ectoparasites of pigs?

A

*Protozoa = Cystoisospora suis
*Mite = Sarcoptes scabiei
*Louse = Haematopius suis

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

What are characteristics of Trichinella spirialis?

A

2 groups = encapsulated + non-encapsulated
*Intracellular nematode
*No eggs or larvae in faeces
*Females = larviparous - L1 newborn larvae (NBL)
*Infective stage = L1 - muscle larvae (ML)

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

What is the life cycle of Trichinella spirialis?

A

*Encysted larvae ingested
*Rapid development L1->L5 in SI
*NBL migrate in blood + lymphatics to skeletal muscle + invade = muscle larvae (ML)
*Nurse cell = Muscle cell infected by single ML - L1 grows but doesn’t moult + remains viable for several years

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

What does Trichinella spirialis cause?

A

*No disease in domestic animals - Severe disease in humans
*Sources = pigs + horses, game meat + arctic animals
*Typical symptoms = Abdominal pain, diarrhoea, fever, chills + peri-orbital oedema
*Severe cases = myocarditis, encephalitis, secondary infections (pneumonia) + death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How is a Trichinella spirialis infection diagnosed?

A

*ELISA
*Muscle biopsy

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

How is a Trichinella infection treated?

A

*Albendazole / Mebendazole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How is Trichinella infection controlled in humans?

A

*Control of Wildlife reservoirs
*Cooking + freezing meat

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

What is the pork tapeworm?

A

Taenia solium

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

What are the route of infection of taenia solium in humans?

A

*Ingesting cysts in undercooked pork
*Ingesting eggs - faeces

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

What are the symptoms on ingestion of cyst of tapeworm in humans?

A

*Abdominal pain
*Nausea
*Diarrhoea / constipation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the symptoms of ingestion of eggs + development of metacestode stage of taenia solium in humans?

A

*Cyst in muslces - no symptoms
*Cyst in CNS - neurocysticercosis = epilepsy, seizures, hydrocephalus, chronic headaches + increased intracranial hypertension

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

What are the characteristics of Balalntidium coli?

A

*Cilliated protozoa - found in LI
*No clinical signs in Pigs - reservoir
*Faeco-oral transmission

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

What does Cystoisospora suis cause?

A

*Most common cause of scour in piglets 10-20days old - unresponsive to antibiotics

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

What is the life cycle of cystoisospora suis?

A

*Typical coccidal life cycle
*Infection = ingestion of sporulated oocyst
*SI = 2 rounds of asexual reproduction
*Sexual reproduction = micro + macrogametocytes = zygote = oocyst

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

How is Cystoisospora suis diagnosed?

A

*Clinical signs - cocci
*Low / negative oocyst count

17
Q

What is the treatment of cystoisospora suis?

A

*Sulphonamides
*Toltrazuril

18
Q

How is Cystoisospora suis infection controlled?

A

*Good hygiene
-indoor = removing contaminating oocyst from environment - Lime washing
-outdoor = arcs moved between consecutive farrowings + boards avoided

19
Q

What is the species of Sarcoptes in pigs?

A

Sarcoptes scabiei var suis

20
Q

What are the clinical signs of Sarcoptes in pigs?

A

*Lesions start around ears, spread to back, flanks + abdomen
*Severe immune reaction, pruritis + erythema
*Intense itching, thickened skin, head shaking + secondary bacterial infections

21
Q

How is sarcoptes transmitted?

A

Direct contact - sow to piglet

22
Q

How is Sarcoptes in pigs treated/prevented/controlled?

A

*Treat + prevent = MLs -in feed / injectable
*Cleaning + disinfecting wooden + concrete surfaces

23
Q

What is the only louse found in pigs? + where is it found? + characteristics?

A

Haematopinus suis
*Found around the ears + skin folds of upper legs
*Large - 5-6mm
Eggs to adult = 4weeks

24
Q

What do haematopinus suis cause in pigs?

A

*Itching
*Reduced feed intake + growth rate
*Anaemia
*Can spread viral infections

25
Q

How is haematopinus suis infestation treated? + controlled?

A

*MLs - in feed/injectable
*Cleaning + disinfecting wooden + concrete surfaces

Parasitology (25 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions