Integrated Vet. Medicine Flashcards
how many legs do larvae have?
6
how many legs do nymphs have?
8
what is a haller’s organ?
sensory organ in hard and soft ticks - senses humidity, temperature, carbon dioxide, and phermones
how do ticks and mites differ?
tick - macroscopic, mostly off host
mite - microscopic, mostly on host
what are the 2 main families of the ticks?
Aragasidae (soft)
Ixodidae (hard)
which soft tick has one host?
Otobius megini (Spinose ear tick)
Which tick type (hard vs soft, and genera) can transmit Cattle fever aka Babesiosis?
Hard tick
Rhypicephalus
What was the first described tick borne disease?
Babseiosis
Rhipicephalus microplus tick causes ___ brain in cattle with Babesiosis. how?
PINK brain
discolored due to distended blood vessels
ID this winter tick
Dermacentor albipictus
list the important Argasidae Genera
Argas
Ornithodoros
Otobius
list the important Ixodidae Genera
Ixodes
Amblyomma
Dermacentor
Rhipicephalus
What’s the main vector of Ornithodoros spp
Epizootic bovine abortion aka Foothill abortion
ID. Is it hard or soft?
Ornithodoros spp
Soft
Where is Epizootic bovine abortion aka Foothill abortion common?
coastal, central CA, Nevada, OR
list examples of direct tick borne disease
irritation-tick worry
anemia
secondary infection
TOXICOSIS aka tick paralysis
list example of indirect diseases
pathogen transmission
- bacteria, protozoa, viruses
What are the two types of transmission of indirect disease?
transstadial (>1 host)
transovarian (1 host)