Endoparasites Flashcards
Characteristics of nematodes
Male or female
May or may not migrate
Characteristics of cestodes
Hermaphrodidic
Always migrate
Transmission of Toxocara canis (3)
Eggs excreted in faces and reinvested
Larvae migrate to liver and lungs
Coughed up and swallowed
Can transmit across placenta and through milk
Zoonotic
Transmission of toxocara cati (3)
Eggs excreted in faeces and re-ingested
Can transmit via intermediate host eg. Mice
Also transmit via mammary glands
Clinical signs of toxocara spp. (4)
Distended abdomen
Stunted growth
V+/D+
Transmission of toxoscaris leoninia (2)
Eggs excreted in faeces and re-ingested
No vertical transmission
Toxoscaris leonina clinical signs
Usually not present
Large burdens well tolerated
Name 2 hookworms and their distinguishing features
Uncinaria stenocephala
- plates in mouth
Ancyclostoma caninum
- 3 sets of hooks
Transmission of hookworms (3)
Eggs excreted in faces and re-ingested
Can transmit via intermediate host
Can transmit percutaneously
Trichuris vulpis trasmission
Eggs excreted in faeces and re-ingested
Trichuris vulpis clinical signs (2)
Bloody mucoid D+
Weight loss
Name 2 lungworms and their main hosts
Angiostrongylus vasorum
- dog
Aelurostrongylus abstrusus
- cat
Transmission of lungworms (3)
Ingestion of molluscs containing larvae
Migrate through liver, venous circ. and heart
Mature in lungs
Adults live in lungs of cats
Adults live in pulmanory artery of dog
- eggs migrate to alveoli
Larvae coughed up and swallowed
Excreted and ingested by molluscs
Clinical signs of lungworms (2)
Noticeable cough
Dyspnoea
Transmission of dipylidium caninum (2)
Segments shed in faeces, release eggs into environment
Flea/louse ingests eggs, hatch inside intestines
Flea/louse ingested during grooming
Tapeworm matures inside intestines
