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Microbiology 2 > Rickettsiae > Flashcards

Rickettsiae Flashcards

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Biology 101 flashcards
0
Q

DOC for rickettsial infections

A

Doxycycline

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1
Q

Weil Felix reaction

A

Cross reaction with antigens of OX strains of P vulgaris

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2
Q

Abrupt onset
Macular with centripetal spread
From tick

A

Rickettsia rickettsii

Rocky mountain spotted fever

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3
Q

No rash
Chronic course
Highest mortality from Ricketssiae

A

Q fever

Coxiella burnetti

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4
Q

Cross reactivity between Rickettsia and Proteus vulgaris

A

Weil Felix test

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5
Q

Weil Felix test results

A

Typhus group rickettsiae (Rickettsia prowazekii, R. typhi) react with P. vulgaris OX19

Scrub typhus (Orientia tsutsugamushi) reacts with P. mirabilis OXK.

The spotted fever group rickettsiae (R. rickettsii, R. africae, R. japonica, etc.) react with P. vulgaris OX2 and OX19.

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6
Q

Rickettsial organism cultured in blood agar

A

R quintana

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7
Q

Members of rickettsia are morphologically and biochemically similar to

A

Gram negative bacteria

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Microbiology 2 (13 decks)

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