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Bacteriology I Final Review > Genus Pasteurella Species > Flashcards

Genus Pasteurella Species Flashcards

1
Q

Characteristics of Pasteurella

A

Small, gram negative rods and coccobacilli, nonmotile
Bipolar staining
Oxidase and catalase positive
Some species grows on MacConkey agar
Anerobes
Commensals on the mucosa of the upper respiratory tract

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2
Q

Pasteurella multocida

A

Cause of diseases in mammals and birds, including fowl cholera in poultry, atrophic rhinitis in pigs, and bovine hemorrhagic septicemia in cattle and buffalo.
Serotypes: Capsular antigens: A, B, D, E, and F
Somatic Antigens 1 to 16
Transmission: Ingestion and Inhalation
Pathogenesis: Fimbriae, dermonecrotoxin (capsular type A and D)
Septicemia

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3
Q

Progressive Atrophic Rhinitis (PAR)

A

Bacteriology: Pasteurella multocida
Habitat: Upper respiratory/oral cavity of mammals
Transmission: Infection of piglets by carrier sow
Path: W/ bordetella promotes colonization of nasal cavity
p. multocida -dermonacrotoxin - rhinitis, osteo-pathy of facial

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4
Q

Progressive Atrophic Rhinitis (PAR) - Clinical Findings

A

Bilateral- shortening of the upper jaw snout (Bull Dog Appearance)
Unilateral - twisting of the upper jaw snout
Sneezing, coughing, nasal discharge,
Reduced feed conversion efficiency - runs
Vaccine: Multivalent

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5
Q

Fowl Cholera

A

Bacteriology: Pasteurella Multocida
Disease: An infection disease in dometic fowl, waterfow;, and other avian species
Transmission: Ingestion, Inhalation, via conjunctiva
Path: Sapticemia

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6
Q

Preacute form of Fowel Cholera

A

Few clinical signs are observed before death, sudden and unexpected deaths

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7
Q

Acute Form of Fowel Cholera

A

Commonly observed signs are anorexia, ruffled feathers, oral and nasal mucus discharge, white or greenish watery mucoid diarrhoea, cyanosis of combs and wattles

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8
Q

Chronix Form of Fowel Cholera

A

Swelling and edema of the comb and wattles, conjunctivitis, sinusitis

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9
Q

Control of Fowel Cholera

A

Vaccination of chickens and turkeys

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10
Q

Rhinitis (Snuffles) in Rabbits

A

Bacteriology: Pasteurella Multocida
Snuffles: inflammation off the nasal passages, occular and nasal discharges, fibrinous bronchopeumonia

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11
Q

Clinical Presentation of Rhinitis (Snuffles) in Rabbits

A

Runny eyes with wet, tear-stained fur on the cheeks, sneezing, discharge from nose wiped away with front paws. Progress to pneumonia and death

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12
Q

Public Health Significance of Rhinitis (Snuffles) in Rabbits

A

Transmission: Direct contact with rabbits and handling raw poultry carcasses
Clinical findings: Cellulitis, bacteremia, meningitis, conjunctivitis

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13
Q

Pasteurella canis and Pasteurella dagmatis

A

Commensals in the oral cavity of dogs and cats

Contamination of bite wounds

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14
Q

Characteristics of Genus Mannheimia

A

Small gram-negative rods, commensals on the mucosa of the upper respiratory tract, facultative anaerobe and oxidase positive

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15
Q

Mannheimia haemolytica

A

Causes: Penumonic pasteurellosis of Cattle referred to as Shipping Fever

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16
Q

Penumonic pasteurellosis of Cattle referred to as Shipping Fever

A

Most prevalent in feedlot cattle
Cattle feedlot industry - economic loss
Transmission: Inhalation

17
Q

Parthenogenesis of Penumonic pasteurellosis of Cattle referred to as Shipping Fever

A

Impaired clearance of bacteria from the respiratory tract
Proliferation and subsequent invasion of the lungs from the URT
Leukotoxin - death of neutrophils and alveolar MO’s
Fibinopurulents bronchipenumonia

18
Q

Clinical Presentation of Penumonic pasteurellosis of Cattle referred to as Shipping Fever

A

Usually following stress
Peaks within 3 weeks of calves arrival in the feedlot
Presence of fave and cough
Nasal discharge
Increased respiratory rate and labored breathing

19
Q

Prevention and Control of Penumonic pasteurellosis of Cattle reffered ti as a Shipping Fever

A

Addition of chlortetracycline to the feed
Im injection of long-acting preparation of oxytetracycling
Vaccination: Bacterins, toxoid-bacterin, and toxoid vaccines

20
Q

M. haemolytica Ovine Pneumonia

A

Fibrinous bronchopeumonia, plauritis, pericarditis

21
Q

M. Haemolytic Gangrenous Mastitis (Blue Bag)

A

Udder: hot, swollen and painful to the touch, cold and gangrenous

22
Q

Characteristics if Genus Avibacterium

A

Gram negative, facultatively anaerobic, Rod rod shaped bacteria found predominantly in birds

23
Q

Avibacterium paragallinarum

A

Requires V factor [NAD] for growth
Serovars: A, B and C
The chicken is the natural host (infectious coryza)

24
Q

Infectious Coryza

A

Transmission: Inhalation and Ingestion of contaminated feed and water

25
Q

Clinical Findings of Infectious Coryza

A 
Conjunctivitis 
Oculonasal discharge 
Swelling of infraorbital sinus 
Facial edema 
Drop in eggs production
26
Q

Characteristics of Actinobacillus Species

A

Small, gram negative rods or coccobacilli, facultative anaerobes, Commensals of mucous membranes, particularly the upper respiratory tract and oral cavity
Endogenous and exogenous infection

27
Q

Actinobacillus ligieresii

A

Lesions (wooden or timber) in tongue, lymph nodes. rumminal wall, skin. Injury to tongue an soft tissue

28
Q

Pathogenesis of Actionbacillus ligieresii

A

Chronic pyrogranulomatous inflammation, aspiration pneumonia, fibrosis of the tongue, grey and white granules

29
Q

Ovine Actionobacillosis

A

Granulomatous lesions

  • Skin
  • Lungs
  • Mammary glands
  • Testes
30
Q

Actionibacullus equuli

A

Causes Sleepy Foal Disease

31
Q

Sleep Foal Disease

A

Transmission: In utero infection, naval infection
Clinical Findings: Septicemia, rapid death, arthritis, enteritis, and pneumonia
occasional abortions of pregnant mares

32
Q

Actinobacillus pleuropneumoniae

A

Causes porcine contagious pleuropneumonia

33
Q

Porcine Contagious Pleuropneumonia

A

15 serotypes based on capsular antigens
Biotype 1 Required for NAD for growth
Biotype 2 Do not require NAD

34
Q

Virulence Factors of Porcine Contagious Pleuropneumonia

A

Fimbriae
Capsule
Hemolysin
Cytolysins - kill neutrophils and MO’s

35
Q

Transmission of Porcine Contagious Pleuropneumonia

A

Aerosol Transmission

36
Q

Pathogenesis of Porcine Contagious Pleuropneumonia

A

Colonization of URT
Invasions of lungs
Autolysis of phagocytes

37
Q

Clinical Findings of Porcine Contagious Pleuropneumonia

A

Peractue
Acute Form - dyspnea, fever, cyanosis
Chronic Form - Pleuritis, lung consolidation and abscessation
Vaccination: Serotypes 1, 5 and 7

Bacteriology I Final Review (12 decks)

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