Lice And Ticks Flashcards
What do Mallophaga lice look like?
Rounded head, six legs, three body parts
What family do the biting live belong to?
Mallophaga
What is the dog biting louse?
Trichodectes canis
What does trichodectes cause? 3
Irritation dermatitis rough hair coat
Trichodectes is the intermediate host for what?
Dipylidium caninum
What are live eggs called!
Nitts
Where are trichodectes found?
On the surface
How can you diagnose trichodectes?
Examine hair coat
How do you control tricjodectes?
Apply topical insecticide for three weeks and treat multiple times
What is the family called for sucking lice?
Anoplura
How long do sucking lice live?
Four weeks
What is the dog sucking louse?
Linognathus setosus
What does linognathus setosus cause? 4
Irritation, dermatitis, rough hair coat anemia
How do you diagnose linognathus setosus?
Examine coat for adults nymphs or eggs
How do you control linognathus setosus?
Apply topical insecticide
What will happen on the first host of a three host tick?
Rick will go from larva to nymph
What will happen on the second host of a three host tick
Tick will go from nymph to adult
What will happen on the third host of a three host tick?
Adult will engorge and lay eggs, larva will move to a new host
What host will have nymphs?
1
What host will have nymphs and adults?
2
What host will have adults, engorged femals, and eggs?
Host 3
What does acanuasis mean?
Mite and tick infestations that are not host specific and may have 1-3 hosts
What are hard ticks called?
Ixodidae
What are soft ticks called?
Argasidae
What is the hard shell on a tick called?
Scutum
What sex engorged with Ixodidae ticks?
Female
What sex enforces with soft ticks?
Both
What is the brown dog tick called?
Rhipicephalus sanguineas
What does the town dog tick cause? 3
Irritation, anemia, Rick paralysis
How do you diagnose the brown dog tick?
Finding tick on skin/hair coat
How do you control the brown dog tick?
Treat host with topical antoparasitic
What causes Lyme disease?
Bacterial infection from borrelia burgorferi
What is the vector for Lyme disease?
Tick
Where is the bacteria reservoir?
Wildlife reservoirs that cause no clinical disease in animals
What do humans show with Lyme disease? 5
Erythema migrans, fatigue, fever, headache, muscle and joint pain
What can develope without treatment of Lyme disease 3
Arthritis, CNS, and cardiac problems
What will domesticate animals show with Lyme disease? 5
Fever, anorexia, swollen lymph nodes, lameness, fatigue
What is the incubation period for Lyme disease?
3-32 days for appearance of Papules
How is Lyme disease transmitted?
Bite of infected ixodes
How is Lyme disease diagnosed? 4
History, shndrome, serology, culture of blood or tissue biopsy
What will happen to patients treat in the early stages of Lyme disease?
Will recover rapidly and completely
What patients may have persistent or recurrent symptoms of Lyme disease?
Patients diagnosed later in Lyme disease
What can happen with long term antibiotic treatment of Lyme disease?
Complications and including death
How do you control and prevent Lyme disease? 3
Avoid tick bites
Control ticks around house
Manage wildlife
Seek medical help after bites
What causes Rocky Mountain spotted fever?
Tick transmitted by rickettsia rickettsii
What are two types of transmission for Rocky mt spotted fever
Transovarial transmission and transracial transmission
What is transovarial transmission?
Generation to generation
What is transtadial tans mission?
Same time period
Where is Rocky mt spotted fever most prevalent in?
South Atlantic state and Midwest
What is the primary way RMSF spread in nature?
Transovarial
How long do ticks need to be attached to spread the disease?
5-20 hours
What will humans show with RMSF? 7
Fever, myalgia, headache, chills, skin rash on extremities, capillary damage, liver disease
Do wild animals show signs of RMSF?
No
What will domestic animals show with RMSF? 7
Fever, anorexia, swollen lymph nodes, dyspnea, abdominal pain, edema in face an extremities, conjunctival bleeding and retina damage
What is the incubation period for RMSF?
3-14 days
What is the mode of transmission for RMSF?
Bite of infected tick
Contact of skin it mucous membranes with tick body fluids
What two ticks carry RMSF?
Dermacenter variabilis, Andersoni
Which tick transmits RMSF in the western United States?
The wood tick (Dermacenter Andersoni)
How do you treat RMSF? 4
History of tick bite, rash, fever, serology
What is the treatment for RMSF?
Antibiotics
What are four ways to control and prevent RMSF?
Wear protective clothing
Use tick repellents
Check yourself and dog for ticks
Clear brush from residential area
