Tick Borne Diseases Flashcards
Ticks
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Ixodida
Tick Families- Ixodidae
Hard ticks
700 species
Feeds for days to weeks
Tick Families-Argasidae
Soft ticks
200 species
Feeds minutes to hours
The LIfe cycle of ticks
Egg
Larva
Nymph
Adult
Characteristics
- Do not tolerate sunlight, dryness, or excessive rainfall
- Can survive as long as 2-3 years without a blood meal
- Females must take a blood meal before fertilization
- Restricted activity during cold months
Questing
Ticks climb grass and attempt to attach to the host
Ticks in Hawaii
Spinose Ear tick (Otobius megnini)
Brown dog tick ( Rhipicephalus sanguineus)
Spinose Ear Tick
Otobius megnini
What does the Spinous ear tick (Obtobius megnini) cause?
Inflammation and ruptured tympanic membrane
Brown Dog Tick
Rhipicephalus sanguineus
Brown Dog Tick Host and location on hosts
Livestock and dogs
all over but usually ear canal and between toes
Brown Dog Tick Clinical importance
anemia
The intermediate host for Babesia canis (RMSF)
American Dog Tick or Wood Tick
Dermacentor variabilis
American Dog Tick or Wood Tick
Clinical importance
Vector of RMSF, tularemia and other microbes
Lone Star Tick
Amblyomma americanum
Lone Star Tick
Clinical Importance
Vector for Ehrlichiosis and tularemia