Brucella, Francisella, Taylorella Flashcards Preview

RUSVM Bacteriology > Brucella, Francisella, Taylorella > Flashcards

Flashcards in Brucella, Francisella, Taylorella Deck (31)
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1

Brucella Characteristics

Non-motile
Coccobacilli
Obligate symbiotic and pathogenic
Facultative intracellular
REPORTABLE

2

Brucella is spread mainly by

Females
Abortions - fetus, placenta have large amount of bacteria

3

B. Abortus - Species and Cause

Cattle
Abortions

4

B. Abortus - Pathogenesis

Mucosa/oral/skin --> lymph nodes --> target organ

5

B. Abortus - Target Organs

Repro organs - uterus, fetus, udder
Articulations
Tendon sheaths
Synovial bursa

6

B. Abortus - Virulence Factors

Cell Wall - Smooth colonies - increased virulence
Cell Wall - Rough colonies - less virulent - lacks O-polysaccharide

7

B. Abortus - Vaccinations

Needed for humoral and cellular immunity

8

B. Abortus - Diagnosis

ELISA
SAW/SAT
Rose bengal test

9

B. Suis is resistnat in environment but can't stand what

Sunlight

10

B. Suis - Biovars (5)

1 - reservoir in hares
2 - hares
3- pigs (most pathogenic)
4 - reindeer and caribou
5 - mice (less pathogenic)

11

B. Suis - Symptoms

Abortion, Orchitis, infertility
Arthritis
Tendovaginitis
Bursitis
Osteomyelitis

12

B. Suis - Zoonotic? More or less pathogenic than Abortus?

Yes Zoonotic
More Pathogenic

13

B. Suis - Acute Infection

Fluctuating body temp
Sweating and chills
Malaise
Joint Pain

14

B. Suis - Chronic

Localization
Necrosis and pus

15

B. Suis - Pathogenesis

Skin and mucous membranes

16

B. Melitensis

Similar to Abortus but in sheep and goats
Zoonotic and more pathogenic

17

B. Canis Characteristics

Does not have O antigen
Obligate parasitic
Zoonotic

18

B. Canis Symptoms

NO FEVER
lymphadenitis
Late abortion
Vaginal discharge
Epididymitis
Scrotum dermatitis
Atrophia testicularis
STD

19

Francisella Characteristics

Pleomorphic
non-motile
Obligate aerobic
Fast growth
REPORTABLE

20

F. Tularensis - Reservoir

Infected lagomorphs
Rodents
Amoeba

21

F. Tularensis - Transmission

Ticks, mozzie and flies
contaminated water
ingestion

22

F. Tularensis - Virulence

Capsule
Endotoxin

23

F. Tularensis - Pathogenesis

Primary pathogen of lagomorphs and rodents
Almost systemic -- multi organ failure

24

F. Tularensis - Symptoms in animal

Rarely seen
Liver, spleen, lungs

25

F. Tularensis - Symptoms in People

Ulceroglandular lesions
Conjunctivitis
Pharyngitis
Pneumonia
Typhoid

26

F. Tularensis - Diagnosis

BSL3
Serology
PCR

27

Taylorella Equingenitalis Characteristics

Non-motile
Coccobacillus
Facultative anaerobic
REPORTABLE

28

Taylorella Equingenitalis Effect in Males

None

29

Taylorella Equingenitalis Effect in Females

CEM
Acute suppurative
Self limiting
Temporarily sterile
Highly contagious
Become asymptomatic carriers

30

Taylorella Equingenitalis Sampling in Stallion

Preputium
Urethra
Fossa Glandis
Sinus urethralis