Ectoparasites

Describe Ctenocephalides felis.

Small (4–9 mm), laterally compressed, wingless insect with powerful hind legs and piercing-sucking mouthparts.

Describe Sarcoptes scabiei var. canis.

Oval-shaped, 8-legged mite with suckers on each leg that tunnels in the epidermis.

Describe Demodex canis.

Elongated, cigar/carrot-shaped mite with short, stubby legs; normal nonpathogenic skin fauna.

What makes Demodex canis easy to identify?

No other mite has its elongated cigar-like shape.

Describe Cheyletiella spp.

Large, visible mite resembling moving dandruff with hook-like mouthparts and comb-like leg structures.

What order do chewing/biting lice belong to?

Mallophaga

Describe chewing/biting lice.

Small, yellow lice with large rounded heads wider than the thorax and three pairs of legs.

What order do sucking lice belong to?

Anoplura

Describe sucking lice.

Larger than chewing lice; red to gray depending on blood intake; narrow head with piercing mouthparts.

What is the scientific name for warbles (wolves)?

Cuterebra spp.

Describe Cuterebra larvae.

Grub-like larvae, 5–10 mm long, cream to gray with tooth-like spines.

What are the types of ectoparasites that are zoonotic

Fleas, ticks ,sarcoptes spp.,otodectes cynotis ( but rare)

Parasitism

In association that exits between two organisms of different species in which a parasite lives on a host it may cause harm

Parasitiasis

A parasite lives in or on a host and is potentially pathogenic, but the host DOSEN’T exhibit any outward clinic signs of disease

Parasitosis

A parasite lives in or on a host in is potentially pathogenic and the host DOES exhibit outward clinical signs of disease

What is a flea’s life cycle?

Egg stage, larva stage, pupal stage , adult stage

Dog flea

Ctenocephalides canis

Ticks are well known vector for disease what are the vectors?

Vectors for anaplasmosis, babesiosis, ehrlichiosis, RMSF, borreliosis to name a few

What does ehrlichosis mean

Fatal

What type of tick is seen in houses , buildings, animal kennels areas, and on all dogs together

Ixodes scapularis

What is the Rhipicephalus sanguines tick also know as

dog tick

Demodex canis has 2 forms what are they

Localized and Generalized

What is localized demodex canis

Patchy alopecia (face, muzzle, and forelimbs)

Is acquired during close contact that develops at the mother nurses the puppy

What is generalized demodex canis

Diffuse alopecia, erythema, and secondary bacterial infection

Usually occurs in pets 18 months or oldewr

Thought to be immune- mediated

How to diagnose Demodex canis

Deep skin scraping while gently squeezing the skin to express mites and view under microscope, mites can be seen as a fecal float

Cuterebra spp can become aberrant what does that mean

Migrate to the brain interior chamber of the eye, pharynx, nose