44- Rickettsia and Orientia Flashcards by Daniel Guck

Q

What are obligate intracellular parasites?

A

cannot survive without being inside a host cell

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Q

What are facultative intracellular parasites?

A

can survive inside or out of a cell

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Q

What are extracellular pathogens?

A

cannot go inside a cell and live there

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Q

R. rickettsii- vector

A

Wood tick/dog tick

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Q

R. rickettsii- Reservoir

A

wild rodents

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Q

R. rickettsii- disease

A

Rocky mountain spotted fever

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Q

R. akari- vector

A

mites

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Q

R. araki- reservoir

A

mice

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Q

R. akari- disease

A

rickettsialpox

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Q

R. prowazekii- vector

A

louse

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Q

R. prowazekii- reservoir

A

humans

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Q

R. prowazekii- disease

A

epidemic typhus

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Q

R. prowazekii- rash location

A

no rash on palms, soles, or face

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Q

R. typhi- vector

A

flea

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Q

R. typhi- reservoir

A

mice

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Q

R. typhi- disease

A

endemic typhus

Q

R. typhi- rash location

A

chest, abdomen

Q

Orientia tsutsugamushi- vector

A

chiggers

Q

Orientia tsutsugamushi- reservoir

A

rodents

Q

Orientia tsutsugamushi- disease

A

scrub typhus

Q

Orientia tsutsugamushi- clinical presentation

A

scab followed by flat rash