Tick-Borne Zoonoses Flashcards
Ixodidae are our:
hard ticks
Argasidae is our:
soft ticks
Which are the ticks capable of transmitting RMSF?
- American Dog Tick (Dermacentor variabilis) (most common vector in US)
- Rocky Mountain Wood Tick (Dermacentor andersoni)
- Brown Dog Tick (Rhipicephalus sanguineus) **
** All key live stages feed on a dog host
Which are the ticks capable of transmitting Lyme disease, Anaplasmosis?
- Blacklegged Tick (Ixodes scapularis, Deer tick)
- Western Blacklegged Tick (Ixodes pacificus)
What is the most common vector-borne disease in the USA?
Lyme Disease
Mode of transmission for Lyme disease:
Vector - Ixodes ticks
Eastern US: ________________
Ixodes scapularis (black-legged/ deer tick)
Mode of transmission for Lyme disease:
Vector - Ixodes ticks
Pacific coast:_________________
Ixodes pacificus (Western Blacklegged tick)
(T/F) White-tailed deer are the most important reservoir for Lyme disease in the United States
False, it is the white-footed MOUSE (Peromyscus leucopus)
What are the reservoir species for Lyme disease?
Many rodent and small mammals and birds serve as reservoirs
(T/F) Deers are a dead end-host for Lyme disease
True
(T/F) Lyme is very easy to diagnose in humans
False
What is the treatment of choice for Lyme disease?
Doxycycline - has anti-inflammatory properties
(younger animals would be amoxicillin)
Etiologic Agent for RMSF (Rocky Mountain Spotted Fever) is:
Rickettsia rickettsii
- infects endothelial cells causing vascular damage
(T/F) RMSF is endemic in the Americas and is the most severe rickettsial illness of humans
True
Rocky Mountain Spotted Fever is maintained in tick populations through:
Transtadial and Transovarial transmission
