Pseudomonas and Burkholderia Flashcards Preview

RUSVM Bacteriology > Pseudomonas and Burkholderia > Flashcards

Flashcards in Pseudomonas and Burkholderia Deck (43)
Loading flashcards...
1

Pseudomonas Characteristics

Obligate aerobic
Motile rods (flagella)
Most saprophytic
Mainly in water

2

P. Aeruginosa Characteristics

Facultative symbiotic
Facultative pathogenic (usually secondary)

3

P. Aeruginosa - Found in

Soil
Water
On Plants

4

P. Aeruginosa - Growth Characteristics

Easy grower
Large colonies
Sweet odor
Blue-green pigment

5

P. Aeruginosa is Oxidase

Positive

6

P. Aeruginosa is Lactose

Negative

7

P. Aeruginosa - Infections

Evironmental origin
High natural resistance
Can adapt to humid hospital environments (tubes)

8

P. Aeruginosa - Virulence Factors

Adhesion (fimbriae)
LPS Endotoxin
Exotoxin
Biofilm
Capsule
Iron acquisition

9

P. Aeruginosa - Affects

Cold blooded animals
Secondary infections in mammals and birds

10

P. Aeruginosa - Predisposing Factors

Drinking water
Humidity
Reduced immunity

11

P. Aeruginosa in Cats and Dogs

Skin infections
Cystitis
Otitis externa
Purulent process - blue green pus

12

P. Aeruginosa in Rodents

Pneumonia
Septicemia
High mortality

13

P. Aeruginosa in Rabbits

Skin infection - moist dermatitis
Sporadic pneumonia

14

P. Aeruginosa in Horses

Metritis-vaginitis
Keratitis conjunctivitis - secondary infection

15

P. Aeruginosa Causes Mastitis in

Bovine, sheep, goat

16

P. Aeruginosa Mastitis

Acute with High Mortality
Origin - environment, teat injector

17

P. Aeruginosa in Reptiles

Necrotic stomatitis
Pneumonia
Septicemia
Secondary to poor housing

18

P. Aeruginosa - psittaciformes in Parrots/Parrakeets

Secondary infection
conjunctivitis
Rhinitis
Pneumonia
Airsacculitis
Enteritis

19

P. Aeruginosa - Galliformes

Water supply
Oviduct of turkeys
Contamination of eggs

20

P. Aeruginosa - Treatment

Take away cause of infection
Fluoroquinolones, Aminoglycosides, polymixin
Most animals die

21

Pseudomonas spp.

Cold blooded animals (reptiles, fish)
Skin ulcus/septicemia

22

Burkholderia Characteristics

Aerobic
Rods
Catalase positive

23

B. Mallei: Glanders

BSL3 agent
Zoonotic
Equine pathogen
Must be reported
Mainly in Asia and S. American

24

B. Mallei: Glanders - Symptoms

Nodules and ulcers, pyogranulomatous
Orchitis
Skin, resp tract
Variability in severity

25

Glanders - Virulence

Capsule
LPS

26

Glanders - Transmission

Ingestion - feed, water
Inhalation
Wounds

27

Glanders - Pathogenesis

Chronic, debilitating
pharynx/skin --> lymph and blood --> Lesions in nodes, lung, liver, spleen, nose, skin

28

Glanders - Supparative Lesions

Nodular - neutrophils, fibrin, RBCs
Granulomatous - Necrotic, giant cells

29

Glanders - Active Infection

Fever
Nasal discharge
Lymphandenitis
Frequently fatal

30

Glanders - Chronic Infection

Fever and resp problems
Skin abscesses