Unit 2- Emerging Infections

Question 1

Bartonella

Answer 1

Aerobic, fastidious, gram negative, coccobacilli, motile, facultative intracellular, cats, opportunistic pathogen, cat flea transmission

Question 2

Bartonella henselae Transmission

Answer 2

Cat fleas

Question 3

Bartonella bacilliformis Transmission

Answer 3

Sand flies

Question 4

Bartonella quintana Transmission

Answer 4

Body lice

Question 5

Cat Scratch Fever

Answer 5

Swollen lymph nodes, new vessels, vesicular lesions, fever, fatigue

Question 6

Cat Bartonellosis

Answer 6

Flea transmission, invade RBC, replicate and persist

Question 7

Bartonella Virulence Factors

Answer 7

Multiple flagella, bartonella adhesin A, filamentous hemagglutinin, Trw system, Virb, IalAB proteins, and hemolysin

Question 8

Bartonella Diagnosis

Answer 8

Warthrin starry stain, not stained by gram, false positive serological test in cats, histology, radiographs

Question 9

Bartonella Control

Answer 9

Prevent cat scratches and bites, control fleas

Question 10

Streptobacillus moniliformis

Answer 10

Filamentous, gram negative, non motile, facultative anerobe, bacilli, fastidious, in upper respiratory of rodents

Question 11

Bacillary Streptobacillus

Answer 11

Pathogenic form

Question 12

L Form Streptobacillus

Answer 12

Non pathogenic form lacking a cell wall

Question 13

Rat Bite Fever

Answer 13

Streptobacillus moniliformis spread by rat bite or contact, fever, rash, joint pain, and abscess

Question 14

S moniliformis Diagnosis

Answer 14

Enriched media, non hemolytic, L form colonies stained by Dienes stain, catalase negative, oxidase negative

Question 15

S moniliformis Treatment

Answer 15

Surgical drainage

Question 16

Chromobacterium violaceum

Answer 16

Gram negative, facultative anaerobe, rods, flagella, violacein, opportunistic pathogen causing fatal systemic disease

Question 17

Violacein

Answer 17

violet pigment with antibiotic activity against gram positives

Question 18

C violaceum Humans

Answer 18

Skin abscess and septicemia progresses to multiorgan abscess and pneumonia

Question 19

C violaceum Horse

Answer 19

Pneumonia, lung nodules, liver and kidney lesions, CNS petechiae

Question 20

C violaceum Dog

Answer 20

Skin necrosis

Question 21

C violaceum Diagnosis

Answer 21

Violet colonies, almond smell, beta hemolysis, catalase positive, oxidase positive,

Question 22

Ornithobacterium rhinotracheale

Answer 22

ORT, gram negative, non motile, microaerophilic, pleiomorphic rods, respiratory disease in birds

Question 23

ORT Clinical Signs

Answer 23

Coughing, reduced weight gain, reduced egg production, air sacculitis, pneumonia, exudate

Question 24

ORT Diagnosis

Answer 24

Small non hemolytic colonies, no growth on MacConkey, oxidase positive, catalase negative

Question 25

Riemerella anatipestifer

Answer 25

Non spore forming, non motile, gram negative, rods, duck septicemia

Question 26

R anatipestifer Symptoms

Answer 26

Nasal discharge, sneezing, leg paddling, head and neck tremors, incoordination, depression, green diarrhea

Question 27

R anatipestifer Diagnosis

Answer 27

Small transparent colonies on blood or chocolate agar, no growth on MacConkey, catalase positive, oxidase positive