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Fall 22: Parasites > 10. spiruids > Flashcards

10. spiruids Flashcards

1
Q

Dracunculus insignis infect

A

racoons and other carnivores
(rare in dogs and cats)

subcutaneous tissue of carnivores and humans

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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2
Q

Dracunculus medinensis infect

A

humans, primates and dogs
Guinea worm

subQ tissue of carnivores and humans

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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3
Q

lifecycle of Dracunculus sp.

A

indirect
IH(copepod-insect in water)
PH (fish, frogs)
DH (canivores and humans)

PPP 1 year
females form a blister in the skin- L1 released from skin into water

SubQ of carnivores and humans

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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4
Q

treatment of Dracunculus sp

A

no drug
remove parasite from blister

clean drinking water (IH- water bug- copepods)

Spiruroidea: dracunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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5
Q

Physaloptera infect

A

stomach of carnivores

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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6
Q
A

Physaloptera
clear and elliptical egg, smooth shell

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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7
Q

Physaloptera adults look

A

pink and live with anterior end embedded in the mucosa of the stomach of carnivores

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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8
Q

lifecycle of Physaloptera sp.

A

indirect

eggs- IH (beetles and crickets)
eat IH or eat PH ( frogs and lizards)
DH (dog/carnivore stomach)

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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9
Q
A

Physaloptera sp

stomach of carnivores

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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10
Q

clinical signs of Physaloptera sp.

A

mostly minor
vomiting and anorexia
can be seen during endoscopy

stomach parasite of carnivores

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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11
Q

test for Physaloptera sp.

A

Fecal sedmentation- heavy egg will not float

stomach worm of carnivores

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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12
Q

Spirocerca lupi infect

A

stomach and esophagus of dogs

can be found in aorta in rare cases

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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13
Q

— is the esophageal worm

A

Spiocerca lupi

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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14
Q

eggs of spirocerca lupi vs Physaloptera sp.

A

S. lupi- narrow, ellopsoidal, cylindrical, smaller then Phys. smooth shell

Physaloptera- clear elliptical, smooth shell

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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15
Q

life cycle of Spirocerca lupi

A

indirect
egg- IH (beetles)
PH (rodents, chicken, birds, reptiles)
DH (dog esophagus)

esophageal worm

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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16
Q

clinical signs of Spirocerca lupi

A

subclinical
cystic nodules and fistulas in esophagus
vomiting, neoplasia, aortic aneurism, pulmonary osteroarthropathy

esophageal worm

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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17
Q

Test for Spirocerca lupi

A

Fecal Sedmentation
heavy egg

similar to Physaloptera sp.

esophagus of canids

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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18
Q

Treatment of Spirocerca Lupi

A

Milbemycin oxime
preventatives
decrease access to beetles and PH (chickens, mice, reptiles and birds)

esophagus worm of canids

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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19
Q

Habronema sp. infect

A

stomach of horses and donkeys

near margo plicatus of horse stomch

similar to Draschia sp.

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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20
Q

Draschia sp infect

A

stomach of horses and donkeys near the margo plicatus

swamp cancer, summer sores

similar to Habronema sp.

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

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21
Q

— larva are called swamp canver or summer sores

A

Habronema sp
Draschia sp.

stomach of horses and donkey

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

22
Q

lifecycle of Habronema sp

A

indirect

IH (flies)
move to stomach of horse or donkey

same as Draschia sp.

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

23
Q

life cycle of Draschia sp.

A

indirect

IH (flies)
move to stomach of horse or donkey

same as Habronema sp.

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

24
Q

Clinical signs of Habronema sp.

A

cutaneous habronemiosisis- cutaneous granulomatous lesions
found in areas that are moist (eyes or wounds)

also in Draschia sp.

Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia

25
clinical signs of Draschia sp
cutaneous habronemiosisis- cutaneous granulomatous lesions found in areas that are moist (eyes) also in Habronema so. | stomach of horses and donkey ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
26
--- cause cutaneous habronemiosisis
Habronema Draschia | stomach of horses and donkey ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
27
test for habronema and draschia
gastroscopy- tumorlike masses in stomach fecal sedimentation- heavy eggs (very thin almost invisible wall) | stomach worm of donkeys and horse ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
28
treatment for Habronema and Draschia
ivermectin and moxidectin for Adult worms ivermectin for summer sores (larva) prevent access to IH (flies) | stomach worm of donkey and horse ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
29
Thelazia sp. infect
conjunctival and lachrymal sac of domestic and wild animals | eye worms ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
30
adult Thelazia are
Small, thin, yellowish‐white worms about with around 2cm long. Present deep, cup-like buccal cavity and prominent cuticular striations | eye worms ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
31
Thelazia californiensis infect
domestic and wild animals and humans zoonotic | california eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
32
Thelazia callipaeda infect
domestic and wild canids and humans oriental eye worm | zoonotic ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
33
Thelazia lacrymalis infect
horses and cattle | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
34
Thelazia skryabini and Thelazia gulosa infect
cattle | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
35
Thelazia sp/ | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
36
lifesycle of thelazia
indirect no eggs- Live L1 (viviparous) L1 into tears, flies(IH/vector) eat tears and L1 develop into L3 in flies L3 move from flies to new DH eye ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
37
thelazia | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
38
clinical signs of thelazia
mild ocular symptoms animals: bilateral infection, conjunctivitis, ulcers, blindness humans: usually mild- unilateral infection, photophobia, epiphora, conjunctivitis | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
39
Test for Thelazia
Morphological examintion and molecular (PCR) can see adult in eye of host | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
40
teatment for Thelazia
cattle: doramectin dog: ibermectin remove adult worm from eye limit access to IH/vector - flies | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
41
Onchocerca sp. infect
domestic and wild animal adult location depends on host canids, cats and humans: eyes horses: cervical ligament cattle and camel: connective tissue
42
--- is spread by tears
thelazia sp. | eye worm ## Footnote Spiruroidea: drancunculus, physaloptera, spirocerca, habronema, draschia, thelazia
43
Onchocerca adults look like
ridges edge, woven large very hard to isolate intact- usually in many fragments ## Footnote Onchocerca lupi- eyes of canids, cats and humans
44
lifecycle of onchocerca lupi
indirect vector blackflies/midges DH: humans and canids and cats in nodules in host eye, produce mf which move to host's skin **blackflies** will feed on these **microfilariae** MF develop to L3 and then back to DH when blackflies eat host again
45
onchocerca lupi infect
eyes of canids, cats and humans
46
clincial signs of Onchocerca sp.
mild- tears, photophobia, conjunctivities chronic- eye nodules
47
if onchocerca sp are in the --- they are asymptomatic
retrobulbar space very difficult to diagnosis
48
what organism makes microfilariae
**Filarioidae** Onchocerca sp. | eye worms- no eggs just baby larva
49
treatment of Ochocerca sp.
surgical removal of parasitic nodule limit access to blackflies and midges | eye worm
50
test for Onchocerca
skin snip to look for microfilariae look at adult (curved edges in pieces) PCR | eye worm in Onchocerca lupi
51
which Spiruroidea is of minor clinical significance in dogs and cats and may cause vomiting and anorexia
Physaloptera sp. stomach of carnivores, clear, heavy and elliptical eggs with larva, seen on endoscopy, ## Footnote DPSHDT
52
which spiruroidea has infections that are often subclinical but can cause cystic nodules in the esophagus
spirocerca lupi stomach or esophagus of canids, can cause cancer, heavy, narrow, ellipsoidal and cylindrical eggs, very small with larva inside ## Footnote DPSHDT

Fall 22: Parasites (32 decks)

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