Diseases Due to Gram Negative Rods IV

Question 1

what is the appearance of Pasteurellaceae?

Answer 1

gram negative rods/coccobacilli
bipolar staining: safety pin

Question 2

are Pasteruellaceae motile?

Answer 2

no

Question 3

how stable are Pasteurellaceae in the environment?

Answer 3

unstable

Question 4

is Pasteurellaceae commensal?

Answer 4

yes: upper respiratory tract mucosae mostly

Question 5

describe Pasteurella multocida: hemolytic or not and capsule

Answer 5

non-hemolytic
thick capsule

Question 6

describe Mannheimia haemolytica: former name, hemolytic or not, who it infects

Answer 6

Pasteurella haemolytica
hemolytic
ruminants

Question 7

is Histophilus/Haemophilus heamolytic?

Answer 7

haemolytic or non-haemolytic

Question 8

does Pasteurellaceae have flagella?

Answer 8

no

Question 9

what virulence factors does Pasteurellaceae have for adherence?

Answer 9

adhesions
fimbriae
filamentous haemagglutinins

Question 10

what makes up the capsule antiphagocytic effect of Pasteurellaceae?

Answer 10

hylauronic acid
heparin
chondroitin
looks like the host

Question 11

Pasteurella multocida colonizes ___________________________

Answer 11

ciliated respiratory epithelial cells

Question 12

what does Pasteurella multocida cause in cattle?

Answer 12

shipping fever
enzootic pneumonia of calves
mastitis
septicemia

Question 13

what is atrophic rhinitis of swine caused by?

Answer 13

Pasteurella multocida type D

Question 14

how is Pasteurella multocida transmitted in swine?

Answer 14

inhalation
from sow
aerosols

Question 15

how is Pasteurella multocida controlled in swine?

Answer 15

vaccine

Question 16

what is Pasteurella multocida often mixed with in swine?

Answer 16

Bordatella bronchiseptica

Question 17

what causes fowl cholera in birds?

Answer 17

Pasteurella multocida type F

Question 18

who does fowl cholera impact?

Answer 18

turkeys
chickens
wild fowl

Question 19

what is the acute form of fowl cholera/Pasteurella multocida in birds?

Answer 19

septicemia to fatal in 6-12 hours

Question 20

what causes snuffles in rabbits?

Answer 20

Pasteurella multocida type A
+/- Staphylococcus

Question 21

is Pasteurella multocida in rabbits opportunistic?

Answer 21

yes: transport, overcrowding, cole, poor ventilation

Question 22

what are the sequelae with snuffles in rabbits?

Answer 22

bronchopneumonia
conjunctivitis
otitis
abscesses

Question 23

what is the treatment for snuffles in rabbits?

Answer 23

antibiotics

Question 24

is Pasteurella multocida zoonotic?

Answer 24

yes: bites, scratches

Question 25

describe the appearance of Bartonella henselae

Answer 25

gram negative rod

Question 26

what is the zoonotic importance of Bartonella henselae?

Answer 26

cat scratch disease: scratching, biting, or licking wounds/scabs

Question 27

what can cat scratch disease affect?

Answer 27

brain eyes heart other internal organs

Question 28

what causes bovine respiratory disease (BRD)?

Answer 28

Mannheimia haemolytica Pasteurella multocida H. somni M. bovis predisposing event

Question 29

what are the morbidity and mortality of bovine respiratory disease?

Answer 29

30-50% 1-10%

Question 30

how is bovine respiratory disease controlled?

Answer 30

antibiotics vaccine stress reduction

Question 31

what causes pneumonic pasteurellosis in sheep?

Answer 31

Mannheimia haemolytica sporadically Pasteurella multocida

Question 32

what characterizes the acute form of pneumonic pasteurellosis in young sheep?

Answer 32

fever respiratory distress sudden death

Question 33

what can cause septicemia in lambs?

Answer 33

Mannheimia haemolytica Bibersteinia trehalosi

Question 34

what causes septicemia in cattle and bison?

Answer 34

Pasteurella multocida types B and E

Question 35

does Histophilus somni survive well in the environment?

Answer 35

yes: 70 days

Question 36

what is the acute form of Histophilus somni like?

Answer 36

septicemia thromboembolic meningoencephalitis blindness ataxia myocarditis pneumonia sudden death

Question 37

what causes glasser disease?

Answer 37

Haemophilus parasuis

Question 38

who does glasser disease impact?

Answer 38

swine

Question 39

how is Haemophilus parasuis transmitted in swine?

Answer 39

from sow: aeerosol inhalation, direct contact

Question 40

how is glasser disease controlled?

Answer 40

antibiotics multivalent vaccines stress reduction

Question 41

which Bordatella infects humans?

Answer 41

Bordatella pertussis: whooping cough

Question 42

what does Bordatella look like under a microscope with a gram stain?

Answer 42

gram negative rods or coccobacilli

Question 43

is Bordatella commensal?

Answer 43

yes: upper respiratory tract mucosa

Question 44

true/false: Bordatella is always localized and never systemic

Answer 44

true

Question 45

who does Bordatella parapertussis infect?

Answer 45

lambs: pneumonia

Question 46

how can infection with Pasteurellaceae occur?

Answer 46

endogenous or exogenous

Question 47

what are some commensals that cause disease when local or systemic host immunity is compromised?

Answer 47

Pasteurella Mannheimia Histophilus/Haemophilus

Question 48

what is the pathogenesis of Pasteurellaceae?

Answer 48

adherence: adhesions, fimbriae, filameentouss haemagglutinins no flagella capsule: hyaluronic acid, heparin, chondroitin siderophores endotoxins exotoxins

Question 49

what cells does Mannheimia haemolytica colonize?

Answer 49

ciliated respiratory epithelial cells

Question 50

what is the acute form of pneumonic pasteurellosis like in adult sheep?

Answer 50

mastitis

Question 51

what is Histophilus somni a commensal of?

Answer 51

bovine genital and respiratory tracts