MISCELLANEOUS BACTERIA (Zoonotic infection)

Question 1

Bacteria that causes Cat Scratch Fever:

Answer 1

Barnotella henselae

Question 2

Bacteria that causes undulant fever (Malta fever) in man and contagious abortion in goats, cows, hogs and dogs

Answer 2

Brucella

Question 3

Culture medium for Brucella:

Answer 3

Biphasic Castaneda bottles (Up to 3-4 weeks)

Question 4

Specimen of choice for the diagnosis of Brucella infection:

Answer 4

Bone marrow

Question 5

A test that confirms the infection and diagnosis (serologic testing for Brucella agglutinins)

Answer 5

Serum agglutination test

Question 6

Brucella spp that is not detected by serum agglutination test:

Answer 6

B. canis

Question 7

The only H2S positive (+) Brucella spp.

Answer 7

B. abortus (Cattle)

Question 8

The only Brucella spp. positive for Thionin, Basic fuchsin, Thionine blue

Answer 8

B. melitensis (Sheep and goats)

Question 9

Brucell spp. positive for Basic fuchsin, and Thionin blue. negative for Thionin

Answer 9

B. abortus (Cattle)

Question 10

Brucella species that are positive only in Thionin:

Answer 10

B. suis (Pigs)
B. canis (Dogs)

Question 11

Bacteria that causes Tularemia (Rabbit fever)

Answer 11

Franciscella tularensis

Question 12

Special medium for F. tularensis:

Answer 12

Blood-Cysteine- Glucose Agar with Thymine

Question 13

Tularemia skin test:

Answer 13

Forshay’s test

Question 14

Most common form of tularemia:

Answer 14

Ulceroglandular tularemia

Question 15

Tularemia transmission:

Answer 15

• Occurs in animal handlers especially rabbits
• also from tick bites

Question 16

Bacteria that lives in the mouth of cats and dogs

Answer 16

Pasteurella

Question 17

Key infections of Pasteurella:

Answer 17

• Cellulitis
• Osteomyelitis
• Bite wounds - usually polymicrobial (S. aureus)

Question 18

Transmission of diseases from Ehrlichia species:

Answer 18

Via Ticks (Lone star tick)

Question 19

Infection caused by Ehrlichia chaffeensis

Answer 19

Human MONOCYTE ehrlichiosis

Question 20

Infection caused by Ehrlichia phagocytophilia and Ehrlichia ewingii

Answer 20

Human GRANULOCYTE eherlichiosis

Question 21

Infection caused by Eherlichia sennetsu:

Answer 21

Sennetsu fever

Question 22

Appearance of inclusions in monocytes associated with Ehrlichiosis appears “_________”

Answer 22

“Berry-like/Mulberry-like” inclusions (morulae)

Question 23

Bacteria that is very similar to Ehrlichia:

Answer 23

Anaplasma

Question 24

Anaplasma causes:

Answer 24

Anaplasmosis

Question 25

Where is the morula seen in anaplasmosis:

Answer 25

Granulocytes

Differentiates from Ehrlichiosis in which the morulae is seen in monocytes

Ehrlichia = inclusions in MONOCYTES
Anaplasma = inclusions in GRANULOCYTES
mnemonic = “ME-GA”

Question 26

Bacteria that causes Rat bite fever (Haverhill fever/ streptobacillary RBF)

Answer 26

Streptobacillus moniliforms

Question 27

Bacteria that causes SODOKU, a form of rat bite fever.

Answer 27

Spirillum minus

Question 28

Colony appearance of S. minus:

Answer 28

Puff ball/cotton ball/bread crumbs appearance in the bottom of liquid media (strings of eparls in thio). Fried egg appearance after 5 days of growth