Other miscellaneous GNB species associated with animals and insects

Question 1

GN, pleomorphic, slow growers, seen in infected tissues with Warthin-Starry silver impregnation stain

Answer 1

Bartonella

Question 2

Warthin-Starry silver impregnation stain

Answer 2

Bartonella

Question 3

• Cause “Cat-Scratch disease” (common in the US)
• Fever, lymphadenopathy
• direct contact with a cat (scratch, lick, bite, or flea bite)

Answer 3

B. henselae & B quintana

Question 4

“Cat-Scratch disease”

Answer 4

B. henselae & B quintana

Question 5

• Serious infectious anemia
• Verruga peruana (eruptive stage)
• Vascular skin lesions (crops)
Transmitted by sandflies (Lutzomyia)
Limited to Peru, Colombia, Ecuador

Answer 5

B. bacilliformis

Question 6

• Causes the Oroya fever (initial stage)

Answer 6

B. bacilliformis

Question 7

Colonizes oropharynx of rodents
Pleomorphic GN rods, irregular chains, filamentous bacillus

Answer 7

Streptobacillus moniliformis

Question 8

Rat bite fever

Answer 8

Streptobacillus moniliformis

Question 9

Haver hill fever

Answer 9

Streptobacillus moniliformis

Question 10

L forms

Answer 10

Streptobacillus moniliformis

Question 11

Causes________;
• Septic fever, blotcy & petechial rashes, painful polyarthritis

Causes________ after ingestion of contaminated milk

Answer 11

rat-bite fever

Haverhill fever

Question 12

Culture: L forms
• best at 37C; ceases to grow at 22C, 2 to 7 days
media w/ whole blood, serum protein, ascetic fluid, egg yolk, starch

• Circular, convex, gray, smooth, glistening, ***“fried egg” in 5 days¥¥¥

Liquid media: “cotton ball” or “bread crumb” bottom part

Answer 12

Streptobacillus moniliformis

Question 13

Biochemically inactive: negative indole, catalase, oxidase, urease, nitrates
Also detected by serum agglutination tests

Answer 13

Streptobacillus moniliformis

Question 14

• GN, spirillary rat-bite fever but has a different clinical appearance (sodoku fever)

Answer 14

Spirillum minor

Question 15

Sodoku fever

Answer 15

Spirillum minor