Flashcards in Lecture 7 - Lyme Disease Deck (16):
Most common vector borne disease
Most common symptom of Lyme disease?
Bulls eye rash associated with a tick bite
How is Borrelia burgdorferi transmitted between hosts?
What type of animals do ticks infect?
Vertebrates and arthropods
Features of Ixodes Tick
hard bodies that are very small but still visible to the naked eye
3 stages of the tick lymph cycle
Larva, nymph, adult *require blood meals between each stage
In what life cycle step does ticks most commonly infect humans?
What time of year do most tick infections occur?
How does transmission occur?
Ticks latch onto human and move to hard to reach spots. Injects anesthetic and becomes engorged.
How long does it take for the tick to begin transmission
What happens in the early localized stage
Bulls eye rash occurs 1-2 weeks after bite and expands if untreated
Early disseminated stage is indicated by
Major rashes, pain and swelling the joints, heart palpitations, meningitis, and facial palsy
What happens in th elate disseminated stage?
Little response to antibiotics and neurological problems are likely
How is Lyme disease diagnosed?
Visible tick bite, antibody tests, and sending the tick to a lab