Prevention and Control of Zoonoses — Flashcards

Flashcard 1: Soft tick (Ornithodoros) causes _____ relapsing fever, whereas the louse causes epidemic relapsing fever.

Answer: endemic

Extra: Endemic relapsing fever is caused by Borrelia species transmitted by soft ticks (Ornithodoros). Epidemic relapsing fever is caused by Borrelia recurrentis transmitted by the human body louse. Q fever (Coxiella burnetii) is primarily transmitted via inhalation of aerosols from infected livestock, not by ticks.

Flashcard 2: _____ is an obligate intracellular bacterium that forms spore-like structures (found in animal feces and placental products).

Answer: Coxiella burnetii

Flashcard 3: How is Yersinia enterocolitica transmitted (3)? _____

Answer: Pet feces (puppies), contaminated milk, and pork products

Extra: Yersinia enterocolitica transmission occurs via: 1. Pet feces (puppies) 2. Contaminated milk 3. Pork products (e.g., chitterlings) It is a common cause of pseudoappendicitis due to mesenteric adenitis.

Flashcard 4: The Ixodes tick is involved in the transmission of _____, Anaplasma spp., and Babesia

Answer: Borrelia burgdorferi

Flashcard 5: _____ is a zoonotic bacteria that forms caseating granulomas with regional lymphadenopathy

Answer: Francisella tularensis

Flashcard 6: Can sporothrix be transmitted by infected animals?_____

Answer: Yes

Flashcard 7: Orf or ecthyma contagiosum is commonly caused by _____ virus, usually after contact with an infected animal

Answer: Parapox

Flashcard 8: Brucella spp. is a facultative intracellular zoonotic bacteria found within _____ of the reticuloendothelial system

Answer: macrophages

Flashcard 9: The image shows the _____ which is responsible for the transmission of Orientia tsutsugamushi.

Answer: trombiculid mite

Flashcard 10: Hard ticks (Ixodidae) can transmit which 6 major conditions? _____

Answer: Tick paralysis, Lyme disease, Rickettsial fevers (e.g., RMSF), Tularemia, Babesiosis, and Viral hemorrhagic fevers (KFD, CCHF)