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Parasitology II UNIVET > Cestodes - Tapeworms > Flashcards

Cestodes - Tapeworms Flashcards

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1
Q
A

a,b: Dipylidium spp.

They have acetabuli and rostrellum, no bothridia
segments are apolytic

c,d: Diphyllobothrium spp.

They have bothridia, no acetabuli and rostrellum
last segments are anapoytic
Zoonotic

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2
Q
A

Diphyllobothrium spp.​

Segment’s anatomical structures

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3
Q
A

Mature proglottid

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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4
Q
A

Diphyllobothrium latum

Life cycle

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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5
Q
A

Diphyllobothrium latum

  1. Coracidium (L1)
  2. Oncosphere (L1 in other cestodes - NOT Diphyllobothrium)
  3. Procercoid (L2)
    1. Procercoid in Cyclops (Crustacean)
  5. Plerocercoid (L3) - infects Freshwater fish
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6
Q
A

Eggs

Diphyllobothrium latum

Collected with Sedimentation method

The eggs contain zygotes

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7
Q
A

Eggs

Diphyllobothrium latum

Collected with Sedimentation method

The eggs contain zygotes

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8
Q
A

Segments - Mature proglottids

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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9
Q
A

Mature proglottid

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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10
Q
A

Stained plerocercoid (L3) from fish

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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11
Q
A

Moniezia spp.

They have acetabuli but no rostrellum, no bothrida
Segments are anapolytic

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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12
Q
A

Moniezia sp.

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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13
Q
A

Carmine-stained Scolex

Moniezia sp.

They have acetabuli but no rostrellum

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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14
Q
A

Scolex of Moniezia expansa

They have acetabuli but no rostrellum

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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15
Q
A

Immature proglottids

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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16
Q
A

Mature segments

Moniezia expansa

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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17
Q
A

Mature segments

Moniezia benedeni

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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18
Q
A

Mature segments

Moniezia expansa

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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19
Q
A

Triangular eggs with oncosphere (L1)

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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20
Q
A

Triangular eggs

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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21
Q
A

Quadrangular eggs with oncosphere (L1)

Moniezia benedeni

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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22
Q
A

Quadrangular eggs

Moniezia benedeni

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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23
Q
Study These Flashcards
A

Moniezia Eggs

(+Eimeria eggs)

Collected by the Flotation method

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

24
Q
Study These Flashcards
A

Box mite

Intermediate Host of Moniezia & Anoplocephala spp.

Infected by Cysticercoids

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**Box mite** Intermediate Host of *Moniezia* & *Anoplocephala* spp. Infected by Cysticercoids
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**Box mite** Intermediate Host of *Moniezia* & *Anoplocephala* spp. Infected by Cysticercoids
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**Mature Cysticercoid larva (L2)** Infective larval stage of *Moniezia* & *Anoplocephala* spp Infect Box mites as their Intermediate host
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*Moniezia* spp. life cycle ## Footnote 1. Egg with Oncosphere (L1) 2. Cysticercoid (L2) infects box mite 3. Infected box mites sit on the tip of grass 4. Small ruminants accidentally eat the mites 5. Worms develop in their intestine 6. Segments are shed containing eggs
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*Anoplocephala* perfoliata They have acetabuli but no rostellum or bothridia Their segments are anapolytic Adult tapeworm of Horses
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*Anoplocephala* perfoliata They have acetabuli but no rostellum or bothridia Their segments are anapolytic Adult tapeworm of Horses _Intermediate Host_: Box mites
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*Anoplocephala* magna Adult tapeworm of Horses _Intermediate Host_: Box mites (Cysticercoid)
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**Triangular eggs with oncosphere (L1)** *Moniezia* _expansa_ Adult tapeworm of Small Ruminants _Intermediate Host_: Box mites (Cysticercoid)
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**Semi-circular egg containing oncosphere (L1)** ***Anoplocephala* sp.** Adult tapeworm of Horses _Intermediate Host_: Box mites (Cysticercoid)
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**Quadrangular eggs with oncosphere (L1)** *Moniezia* _benedeni_ Adult tapeworm of Small Ruminants _Intermediate Host_: Box mites (Cysticercoid)
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**Box mite** Intermediate Host of *Moniezia* & *Anoplocephala* spp. Infected by Cysticercoids
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*Dipylidium* caninum They have acetabuli and rostellum but no bothridia Their segments are apolytic Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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*Dipylidium* caninum They have acetabuli and rostellum but no bothridia Their segments are apolytic Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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*Dipylidium* caninum They have acetabuli and rostellum but no bothridia Their segments are apolytic Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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*Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Segments of *Dipylidium* caninum** Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Gravid segments of *Dipylidium* caninum** Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Carnine-stained mature segment** *Dipylidium* caninum Two ovaries, many testicles Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Carnine-stained immature and mature segments** *Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Carnine-stained mature segment** *Dipylidium* caninum Two ovaries, many testicles Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Gravid segment of *Dipylidium* caninum** Filled with eggs (the double outline is not visible) Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Gravid segment of *Dipylidium* caninum** Filled with cocoons - eggs (the double outline is not visible) Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Gravid segment of *Dipylidium* caninum** Filled with cocoons - eggs Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Cocoon of *Dipylidium* caninum** Filled with eggs containing six-hoocked oncosphere Collected with Flotation method Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Cocoon of Dipylidium caninum** Filled with eggs containing six-hoocked oncosphere Collected with Flotation method Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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**Cocoon of *Dipylidium* caninum** Filled with eggs containing six-hoocked oncosphere Collected with Flotation method Adult tapeworm of Dogs/Cats/Humans _Intermediate Hosts_: *Ctenocephalides* spp. / *Trichodectes* canis
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***Ctenocephalides* sp.** _Intermediate host_ of *Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans
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***Trichodectes* canis** _Intermediate host_ of *Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans
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**Flea larva ingesting a Cysticercoid** *Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans
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**Flea larva ingesting a Cysticercoid** *Dipylidium* caninum Adult tapeworm of Dogs/Cats/Humans
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**Life cycle of *Dipylidium* caninum** ## Footnote 1. Adult worms develop in smal intestine 2. Posterior segments of adult worms passed in faeces 3. Segments and cocoons in faeces and on fur 4. Eggs ingested by flea larva 5. Infected adult flea is accidentaly ingested by dog
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Cestodes in birds and their intermediate hosts
* Raillietina* spp. - IH: insects and snails * Davainea* spp. - IH: snails * Hymenolepis* spp. - IH: insects

Parasitology II UNIVET (6 decks)

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