Exam I - Ancylostoma spp. Flashcards
What is the common name for Ancylostoma caninum?
Hookworm
Which taxonomic order does Ancylostoma caninum belong to?
Strongylida
What are the final hosts for Ancylostoma caninum?
Dogs and foxes
How would you differentiate between adult Ancylostoma caninum and adult ascarids in the small intestine of the final host?
Ancylostoma caninum adults are typically smaller (1-2 cm) than ascarids.
They also have a characteristic ‘hook’ posture, a large buccal capsule, and 3 pairs of marginal teeth
Ancylostoma caninum eggs are roughly ____ um
60 x 40 um
Describe the appearance of an Ancylostoma caninum egg
Thin-shelled, oval; ~ 60 x 40 um
Is the Ancylostoma caninum life cycle direct or indirect?
Direct.
What is/are the site(s) of infection for Ancylostoma caninum?
Adults will be found in the small intestine
Identify some clinical signs associated with Ancylostoma caninum.
Acute infections cause anemia and lassitude (little energy).
Anemia can be severe; accompanied by diarrhea with blood and mucus.
Chronic infections cause weight loss, poor hair coat, and loss of appetite.
Which diagnostic tool(s) would be most effective for diagnosing Ancylostoma caninum?
hematology and fecal float
What is the common name for Ancylostoma tubaeforme?
Hookworm
What is/are the final host(s) for Ancylostoma tubaeforme ?
Cats.
What are the possible modes of infection associated with Ancylostoma tubaeforme?
Per os
percutaneous
paratenic hosts
What, primarily, should humans be concerned with regarding Ancylostoma braziliense?
cutaneous larval migrans
Causes most severe cutaneous larva migrans in humans. This lesion occurs in the dermis and causes severe pruritus. Caused by infective larvae wandering in the dermis. Dead end for larvae, but skin lesions persist.
What are some clinical signs associated with Ancylostoma braziliense?
Mild digestive upsets and occasional diarrhea
