Test 1 - Notes Flashcards
Rhipicephalus (B) Microplus
Common Name: # host tick? Transmits: Where found? Host?
Tropical Cattle Tick
- 1 host tick Transmits: - Babesia Bovis - Babesia Bigemina - Anaplasma Marginale
Location: Not in US
Host: mostly cattle
Rhipicephalus Sanguineas
Common Name: # host tick? Transmits: Where found? Host?
CN: Brown Dog Tick - 3 host tick (all on dogs) transmits: Babesia Canis, Babesia Gibsoni, Ehrlichia Canis, Rhickettsia rhicketsii Found: all over US Host: Dogs
Amblyomma Americanum
Common Name: # host tick? Host? Transmits: Where found?
Lone Star Tick - 3 host tick Host: small/large mammals Transmits: - Ehrlichia ewingii (dog/human erylichiosis) - Francisella Tularensis - Cytauxzoon felis - Possibly Borrelia burgdorfer
Location: SE US
Amblyomma Maculatum
Common Name: # host tick: Host: Location: Transmits:
Gulf Coast Tick
- 3 host tick
- host: birds to lg mammals
- Location: gulf coast up to KS
- Transmits:
- hepatozoon americanum (dogs)
- maybe ehrlychia Ruminantium (heart water)
- causes Gotch Ear
Amblyomma Cajennense
Common Name: # host tick: Host: Transmission: Location:
CN: Cayenne Tick 3 host tick Host: birds to lg mammals Trans: - maybe ehrylichia ruminantium location: S Texas to S America
Amblyomma Variegatum
Common Name: # host tick: Host: Transmission: Location:
CN: Pretty Tick, tropical bont tick 3 host tick Host: birds when small, cows when grown Trans: - Ehrlichia ruminantium (heart water) - Dermatophilus Congolensis - Location: not in US
Dermacentor Variabilis
Common Name: # host tick: Host: Transmission: Location:
- American Dog Tick
- 3 host tick
- sm-lg mammals
- Transmits
- rickettsia rickettsii (most imp. for this)
- cytoxzoon felis - Widespread US
Dermacentor Andersoni
Common Name: # host tick: Host: Transmission: Location:
CN: Rocky Mt. Wood Tick - 3 host tick Host: small - lg. mammals Trans: - rickettsia rickettsii (2nd most imp. vector) - CO tick fever - Anaplasma Marginale Location: Rockies, Great Basin, Black Hills
Dermacentor Albipictus
Common Name: # host tick: Host: Transmission: Location:
CN: Elk Tick, winter tick, horse tick 1 host tick host: Deer, cattle, horses Trans: - Anaplasma Marginale - Babesia Caballi Location: US, etc.
Dermacentor Occidentalis
Common Name: # host tick: Host: Transmission: Location:
CN: Pacific Coast Tick 3 host tick Host: horses, cattle Transmission: Anaplasma Marginale Location: California, Oregon
Dermacentor (A) Nitens
Common Name: # host tick: Festoons, if so how many? Host: Transmission: Location:
CN: tropical horse tick
1 host tick
7 festoons
Host: horses
Trans: babesia Caballi (primary vector of)
Location: S texas, Southern FL and Americas
Ixodes Scapularis
- Common Name:
- # host:
- Host:
- Transmission:
- Location:
CN: Deer Tick or blacklegged tick
- 3 host tick
- Host: broad
- Trans:
- Babesia microti (human babesiosis)
- Borrelia burgdorferi (lyme disease; human/dog)
- Anaplasma Phagocytophilum (human, dog, horse) - Location: Eastern N. America
Haemaphysalis Leporispalustris
Common Name:
# host tick:
Host:
Transmits:
CN: Rabbit Tick
3 host tick
- adults on Rabbits and sometimes cats (Larva and nymph on small rodents/birds)
Trans: Francisella Tularensis, Rickettsia rickettsii (RMSF) in rabbits
Argas Persicus
Common Name: Host: Transmits: Location: physical Char:
CN: Blue Bug/Fowl Tick
Host: Chicken/Poultry
Trans: Borrelia Anserina (avian spiral ketosis)
Location: Globally
Physical Char: lat. suture line, feed at night
Ornithodoros
Common Name:
Distribution:
Host:
Transmits:
Tampan
Local: Global
Host: WHR (wide host range)
Trans: Borrelia Corriaceae
Otobius Magnini
Common Name: parasitic stages: location on host appearance: Clinical Signs: Location:
Spinose ear tick
- L and N parasitic, adult not
- in ears
- Spiney
- CS:
- head shaking
- Head pressing - SW US
Rhipicephalus (B) Annulatus
Common Name: # host tick? Transmits: Where found? Host?
Cattle Fever Tick
- 1 host tick Transmits: - Babesia Bovis - Babesia Bigemina - Anaplasma Marginale
Found: Not in US
Host: cattle
what are the 2 body regions of mites?
antenna or no?
what are the components of mouth parts?
Gnathasome
Idiosoma
No antenna
Comp. of mouth:
- Palps
- Chelicera
- Hypostome
Do mites have:
- anterior or posterior mouthparts
- scutum or not?
- base capitulum or not?
- anterior mouthparts
- no scutum
- no base capitulum
General Lifecycle of a mite…..
- Egg
- Prelarva
- larva
- protonymph
- deutonymph
- tritonymph
- Adult
mites fall into which classes of stigmata?
prostigmata
oribatida (hidden/cryptostigmata)
astigmata
mesostigmata
mites w/mesostigmata
- Dermanyssus Gallinae
- Ornithonyssus Sylvarium
- O. Bursa
- O. Bacoti
- Pneumonyssoides Caninum (dog nasal mite)
- Ophionyssus Natricis (lizard/snake mouth rot)
- Raillietia Auris (cattle ear mite)
Dermanyssus Gallinae
Common Name: Host: Size: where do they dwell and when? What do they cause? Life Length:
Common name: Red Chicken Mite
Host: birds, maybe mammals
Size: Large
Note: bld feeders, turn red after meal
Dwelling: feed at night, hide in nest during day
Cause: anemia, skin irritation, decreased production
Life Length: 10 days
Ornithonyssus sylvarium
Common name: For diagnosis where is the mite found? Where eggs are laid? Length of lifecycle? Direct effects:
Common name: Northern fowl Mite Found: ON HOST Eggs: Laid near vent Lifecycle: 5-7 days Result: Lowered production, anemia, death
Ornithonyssus Bursa
Common Name:
Lifespan:
Where found? animal/enviro and where feeds
CN: tropical fowl mite
lifespan: 10 days off the host so look in enviro.
Found: vent, beak, eyes
Note: prefers warmer climates
Ornithonyssus Bacoti
Common name:
Feeds on:
Lifecyle:
Transmits:
CN: Tropical Rat Mite Feeds on: man and rats Lifecycle: 11-16 days Transmits: - Rickettsii Typhi (Murine Typhus) - Rickettsii akari - Coxiella Burnetti (Q fever) - Borrelia Anserina (spiracetosis)
pneumonyssoides caninum
What species does it affect? Is it highly specific or not? Clinical Signs: Where can you find them in the host? how transmitted?
- Species: Nasal mite of dogs (highly specific to dogs)
- Clinical signs: asymptomatic but can have increased mucus, sneezing and head shaking
- Host: nose, but may infest trachea, lungs
- transmission: direct contact
Raillietia aurus
What is it? Mite, tick, lice, etc.
host:
Found where:
Common?
MITE
Found: young suckling calves
Found: deep in ear canal, feed on wax and sloughed epi. cells
Common? No, Rare
Ophionyssus Natricis
Host: Where on host? what do they cause on host? what do they transmit? where found?
Host: Bld sucking mite of lizards/snakes
Where: hides under scales, feed near eyes/mouth
cause: Anemia, Lethargy, Death
Transmit? Aeromonas Hydrophyla (mouth rot)
Found: in enviro
Family: Trombiculidae
Common name: What phase/phases are parasitic? # of legs of parasitic phase(s)? Season(s) that they are prevalent: Direct effect:
Common name: Chiggers Parasitic phase: Larva # of legs: 3 pr Come out: Spring through late summer Cause: localized dermatitis from salivary enzymes
Family: Demodicidae
appearance: where do they live? Are they usually found on animals? Species Specific? clinical signs:
cigar shaped mites with stubby legs
Live: in hair follicles and sebacious glands
- Usually found on animals (symbiont)
- YES, Species specific
- Clinical Signs: shouldn’t be any unless there’s other issues
3 types of Demodicosis
- localized - small alopecic patches, non puritic to pur., usually on head, legs. Commonly resolved spontaneously at puberty
- Generalized - serious condition, covers lg. area, usually secondary staph infection
- pododemodicosis - chronic infection of feet
Family: Cheyletiellidae
Common Name: Where found? Feeds on: size: defining feature: what location (physical) are they mostly found?
CN: Walking Dandruff
Found in hair, wool, etc. of mammal
Feeds on: Skin Debris
Size: large, shield shaped
Defining Feature: prominent incurved palpal claws
Location: found in pet stores and kennels
Note: can contaminate people but fairly species specific
List the Cheyletiella Species:
where do stages occur? What do they feed on? Who's susceptible? Where eggs are laid? Who can transmit to who?
- blackei (cats)
- Yasguri (dogs)
- Parasitivotax (rabbits)
all stages occur on host feed on skin young more susceptible eggs adhere to host, can be knocked off by grooming mom can give to babies
Cheyletiella Species lesions
how to diagnose C. species
- exfoliative: dandruff
- Crustose: may look like ringworm on trunk of body
- Look for eggs in feces
Astigmata suborder
Leg arrangement: have Stigmata? Have ventral plates? Anything special about Tarsi? Most notable species?
Leg arr: coxae 1/2 seperated from 3/4 no stigmata no ventral plates most have tarsi w/suckers most notable: scabies
Sarcoptes Scabiei
Lifecycle spent where?
what diseases do they cause?
- Entire Lifecycle on host, burrows in skin
- will cross over to diff. hosts and irritate but only breed on adaptive host
- Sarcoptic Mange, Scabies
Sarcoptic mange
Caused by:
Clinical Signs:
Starts where on animal?
How Spread?
Caused by: Sarcoptes Scabiei
Clinical Signs: Sever burnin itch, thickening of skin, scabs due to self mutilation, alopecia,
starts on head, moves to body
Spread: direct contact
Sarcoptic Mange
reportable in what?
quarantine of what animal and who says?
Reportable in Cattle
Swine quarantine regulations by state
Notoedres cati
- Causes what in what animals?
- Where does it begin and spread to?
- similar in appearance to Sarcoptes
- Notoedric mange in cats, rabbits and occas. dogs
- begins on head (usually ears), spreads over face and head (generalized in kittens)
- similar in appearance to Sarcoptes
Knemidocoptes Mutans
Common Name: Host? Where found on animal? Clinical Signs: Infestations lead to? How to stop infestations?
Common Name - Scaly leg mite (turkeys/chickens)
Found: burrows in skin of feet and legs
CS: Causes deformity and crippling
Leads to: infestations may result in death
How to stop: segregate infested birds to stop infestation
Knemidocoptes Pilae
Host?
Where found on host?
What does it cause?
H: Budgerigars (bird)
Location: at base of beak, legs
Causes: scaly legs, malformed beak
Psoroptes Ovis
Common Name: Host and is it here? Feeds on? Where are scabs formed? Time of yr it's found?
- CN: Sheep Scab Mite
- Host: eradicated in Domestic US sheep, reportable in Cattle
- Feed on skin, lymph exudate from abrasions
- Scabs: scabs appear ventrally along dorsum, spread ventrally
- Mid Jan. - march (like long hair)
Psoroptes Cuniculi
Common Name:
Host:
Clinical signs:
CN: Ear Canker Mite
Host: Goats, horses, rabbits
CS: Crusty scabs in ear canal
Chorioptes Bovis
Common Name:
Host:
Feed on:
Clinical Signs:
CN: Foot Mange Mite “Greasy Heel”
Host: Ruminants, Horses
Feed on: skin, don’t burrow
CS: scales form on feet and lower hind legs
Otodectes Cynotis
Common Name:
Host:
Feed on:
Clinical Signs:
CN: Ear Mites
Hosts: Cats, Dogs, other carnivores
Feed on: epidermal debris and lymph from abraded skin
CS: head shaking, scratching, ears may droop, brown discharge
Lynxacarus Radovskyi
common Name:
shape of body and what does it hang onto?
Where found on animal?
CS:
- CN: Cat Fur Mite
- Laterally compressed, grabs hair w/legs and palps
- Found on tail, perineal area
- CS: scruffy coat, pruritis, excessive grooming, hair balls in some cats
Important Mite Families’ Characteristic Lesions:
- sarcoptidae:
- Psoroptidae:
- Cheyletiellidae:
- Trombiculidae:
- Demodicidae:
- Knemidocoptidae:
- Sarcoptidae: Deep burrowing in skin (alopecia, pruritis, thickening w/cracks)
- Psoroptidae: surface feeders (scabbing from abrasion, oozing, pruritis)
- Cheyletiellidae: Dry/Moist dermatitis w/scaling
- Trombiculidae: Small red lesions, pruritis
- Demodicidae: Alopecia, nodules, color changes
- Knemidocoptidae: can cause deformitis of chicken/turkey legs
Mites: Must Locate to diagnose:
How do you locate for DX:
- Demodex
- Sarcoptes
- Surface mites
- Superficial skin scrapings for surface mites
- Deep scraping and squeezing for Demodex (hair follicle)
- Scrape into dermis for Sarcoptes (Scabies mite)
- Sample diff. sites at edge or away from lesions
Generalized life cycle of a lice
Incomplete metamorphosis; Egg to nymph 1-3 to adult; 3 weeks to develop; Entire life cycle on host
Lice: Location of eggs
“nits” are glued to hair/feathers of host
How are lice transmitted between individuals
Direct contact and shared bedding
Characteristics of sucking lice
NOT ON BIRDS, Head is narrower than thorax which is fused, single claw on tarsi, eyes absent or reduced (prominent of human), all stages and sexes feed on blood
Characteristics of chewing lice
Found on birds (2 claws on tarsi) and mammals (1 claw on tarsi), head is wider than thorax, feeds on skin scales and dander
Chewing lice suborder Ischnocera charactersitics
Mouthparts close horizontally, thoracic segments fused, no palps, antennae 3-5 segments
Chewing lice suborder Amblycera charactersitics
Mouthparts close vertically, thorax divided between 1 and 2nd segments, have 4 segmented palps, antennae with 4-5 segments and folded under the head
Direct effects of lice
Tremendous irritation, pruritis, hair loss, death from anemia (sucking)
Trichodectes canis: sucking or chewing, common name, location on host, intermediate host of what
Chewing,
Dog biting louse,
Neck and tail,
Dipylidium caninum
Felicola subrostratus:
sucking or chewing,
Common name,
Host
Chewing,
Cat louse,
Usually sick or older cats
Genus Bovicola:
sucking or chewing,
Important direct effect
Chewing,
Significant economic losses
Bovicola limbatus common name
Angora goat louse
Bovicola crassipes common name
Goat louse
Bovicola bovis common name
Cattle biting louse
Bovicola equi common name
Horse chewing louse