Module 3: Flea-Borne Zoonoses Flashcards
What is the following describing:
- Gram -, non-motile bacterium
- Occurs globally (but focal areas)
- Poor environmental persistence
- The primary reservoir is Rodents
Yersinia pestis
What are the modes of transmission for Yersinia pestis?
- Rodent flea. bites (after feeding on the infected host)
- Aerosol
- Ingestion of infected animal
- Direct contact body fluids from infected individuals
What is the most common form of plague?
Bubonic
What species is highly susceptible to the plague?
Cats
(it is very bad, fever, cough)
Animals get the plague usually by:
eating infected prey
What species is unlikely to develop clinical illness in regard to the plague?
Dogs
List the clinical forms of Plague from most common to least common:
- Septicemic
- Pneumonic
- Bubonic
Bubonic, Septicemic, Pneumonic
(80-85%, 10-20%, 3%)
(not normally directly transmissible, life-threatening, aerosol transmission person-to-person)
What is the best drug for Plegue?
Prophylactic antimicrobial drugs
What is the most common Bartonella spp.?
Bartonella henselae
(Gram-negative rod, Fastidious, slow-growing)
Mode of transmission for cat scratch:
Vector-borne
- Cat fleas - Ctenocephalides felis
- B. henselae transmission
Mode of transmission for cat scratch:
Cat-to-Cat
- C. felis
- no evidence of direct horizontal (without vector) or direct vertical transmission
- can be transmitted by intravenous or intramuscular inoculation of blood
Zoonotic Transmission of Cat Scratch:
Scratches or bites from cats
After getting scratched by a stray cat, what would be the etiologic agent of the zoonotic disease you are most suspicious of?
Bartonella henselae
What is the best method of preventing zoonotic plague?
Concurrent control of rodents and fleas
