Zoonoses and Miscellaneous

Question 1

can cause undulating fever after intake of unpasturized dairy product

small, gram-negative rod without a capsule

Answer 1

Brucellosis

Brucella abortus

Tx: doxycycline + rifampin

Question 2

What is the tick vector of F. tularensis?

Answer 2

Dermacentor

Question 3

What are the reservoir host of F. tularensis?

Answer 3

Rabbits
Deer
Rodents

Question 4

What is the tx for tularemia?

Answer 4

Streptomycin

Gentamicin

Question 5

What is the most virulent bacteria that has a safety pin appearance?

Answer 5

Yersinia pestis

Question 6

What is the flea vector of yersinia pestis?

Answer 6

Xenopsylla cheopis

Question 7

What is the reservoir of Y. pestis?

Answer 7

Wild rodents

Question 8

[Forms of plague]

sudden onset fever, headache, chills, weakness, painful lymph nodes

Answer 8

Bubonic plague

Question 9

[Forms of plague]

Fever, chills, extreme weakness, abdominal pain, skin and other tissues turn black and die especially on the fingers, toes, and nose

Answer 9

septicemic

Question 10

Most serious from of plague due to Y. pestis since it can be spread from person to person by respiratory droplets

Answer 10

pneumonic

Question 11

closed safety pin appearance

short, encapsulatedm gram-negative rod

Answer 11

Pasteurella multocida

Tx: pen G

Question 12

The buttery colonies with musty odor in P. multocida is due to

Answer 12

indole ring production

Question 13

What are the reservoirs of P. multocida?

Answer 13

Cats and dogs

Question 14

Cat scratch disease

Answer 14

Bartonella henslae

Question 15

B. henslae can be transferred through ___

Answer 15

cat bite or scratch

Question 16

What is the close differential of bacillary angiomatosis that is due to B. henslae?

Answer 16

kaposi sarcoma

Question 17

[What is the etiology]

Clue cells, positive whiff test, malodorous vaginal discharge

Answer 17

Gardnerella vaginalis

Question 18

Bird fancier disease

sudden onset pneumonia, malaise, fever, anorexia, sore throat, photophobia, severe headache

Answer 18

Chlamydia psittacii or Psittacosis

DOC: Azithromycin

Question 19

What are the associated bird that can cause C. psittaci infection?

Answer 19

parrots, parakeets, macaws, cockatiels

Question 20

[DOC for chlamydia spp]

STD

Answer 20

Azithromycin

Question 21

[DOC for chlamydia spp]

Conjunctivitis

Answer 21

Erythromycin

Question 22

[DOC for chlamydia spp]

LGV

Answer 22

Doxycycline

Question 23

[Rickettsiae]

Tick vector
Rash is macular with centripetal spread, no eschar

Answer 23

Rickettsia rickettsii (Rocky Mountain Spotted Fever)

Question 24

[Rickettsiae]

Vector: chigger mite
Rash: generalized papulovesicular
Eschar: present

Answer 24

Rickettsia akari

Rickettsialpox

Question 25

[Rickettsiae]

Vector: body louse
Rash: macular with centrifugal
Eschar: no eschar

Answer 25

Rickettsia prowazekii

EPIdemic typhus

Question 26

[Rickettsiae]

Vector is rat flea
Rash maculopapular
Eschar: no eschar

Answer 26

Rickettsia typhi

ENdemic typhus

Question 27

[Rickettsiae]

Vector: chiggers mite
Rash: maculopapular with centrifugal spread
Eschar: no eschar

Answer 27

Orientia tsutsugamushi

Scrub typhus

Question 28

[Rickettsiae]

Vector: no vector
Rash: no rash
Eschar: no eschar

65% mortality

Answer 28

Coxiella burnetti

Q fever

Question 29

[Rickettsiae]

Vector: ticks
Rash: maculopapular or petechial
Eschar: none

Answer 29

Ehrlichiosis

E. chaffeensis

Question 30

Painful genital ulcer

Small gram-negative rod, grows in chocolate agar with factor X

Answer 30

H. ducreyi

Question 31

Can cause mesenteric adenitis (pseuroappendicitis)

Answer 31

Yersinia enterocolitica

Question 32

can cause granuloma inguinale

Answer 32

This is Donovanosis

Klebsiella granulomatosis

Question 33

[Diagnosis]

pseudobuboe, ulceration forms beefy red ulcer with velvety surface

organism has bipolar densities, look like closed safety pins

Answer 33

Donovanosis

Tx: Azithromycin
Organism: K. granulomatosis