Ticks Flashcards
What are the 2 classes of ticks called?
Hard ticks/Ixodidae
Soft ticks/argasidae
Define transstadial transmission.
All life stages occur on that host. Essential for the survival of parasites from mites and hard ticks.
Define transovarial transmission.
Vertical transmission to offspring through ovaries.
How is ixodes ricinus identified?
Large dark scutum
Which definitive hosts are affected by ixodes ricinus?
Mostly sheep
Dear
Cattle
Humans
How many hosts does ixodes ricinus have?
3 host tick so long lifecycle
Outline the lifecycle of ixodes ricinus.
- Adults feed
- Drop to ground and lay eggs
- Feed on rodent or bird intermediate host
- Return to environment
- Nymph
- Another intermediate host
- Environment
- Adult
What is the scientific name for marsh/meadow/ornate cow tick?
Dermacentor reticulatus
How many hosts does dermacentor reticulatus have?
3 host tick
How can dermacentor reticulatus be identified?
Patterns across body
What are the definitive hosts of dermacentor reticulatus?
Dogs
Cats
Wild mammals
How long is the lifecycle of dermacentor reticulatus?
1 year
What is transmitted via dermacentor reticulatus and how?
Babesia canis
Transstadial and transovarial transmission within 48-72 hours
What is the scientific name for brown dog/kennel tick?
Rhipicephalus sanguineus
Where is rhipicephalus sanguineus found?
Heated kennels and houses
How long is the lifecycle of rhipicephalus sanguineus?
3 month
How is rhipicephalus sanguineus identified?
Less patterned than dermacentor reticulatus
What does rhipicephalus sanguineus transmit?
Babesia canis
Hepatozoom canis
Ehrlichia
Name 8 tick spread diseases.
Lyme disease
Louping ill
Babesiosis
Anaplasmosis
Pyaemia
Tick borne fever
Canine ehrlichiosis
Tick borne encephalitis
How is lyme disease/lyme borreliosis transmitted?
Bacterium borrelia burgdorferi by ixodes ricinus
What is louping ill and its clinical signs?
Infectious ovine encephalitis. In sheep and red grouse.
Incoordination
Tremors
High stepping
What is the name of the pathogen causes anaplasmosis?
Anaplasma marginale
What is the name of the pathogen causes pyaemia?
Staphylococcus aureus
What is the name of the pathogen causing tick borne fever?
Anaplasma phagocytophilium
What is the name of the pathogen causing canine ehrlichiosis?
Ehrlichia canis
