Other Part 2

Question 1

Fusobacterium necrophorum
gram - or + shape
aerobe or anaerobe
spore or non-spore forming
contagious or non contagious
virulence factors

Answer 1

gram - pleomorphic rod
anaerobe - slightly aerotolerant
non-spore forming
noncontagious
endotoxin (LPS), leukotoxin, hemolysin, dermonecrotic toxin, protease/nucleus, hemagglutination

Question 2

Fusobacterium necrophorum
species
clinical signs

Answer 2

bovine liver abscesses, bovine footrot, and calf diptheria (secondary problem in BRD compelx) in cattle
non-contagious ovine foot rot in sheep ~ associated with Trueperella pyogenes
hardware disease in cattle

Question 3

what bacteria is also associated with Fusobacterium necrophorum

Answer 3

Trueperella pyogenes

Question 4

Treponema phagedenis
gram - or + shape
aerobe or anaerobe
spore or non-spore forming
species
clinical signs

Answer 4

gram - spirochete
anaerobe
non-spore forming
cattle
hairy heel wart strawberry foot rot “papillomatous digital dermatitis”

Question 5

Dichelobactera nodosus
gram - or + shape
aerobe or anaerobe
spore or non-spore forming
species
clinical signs

Answer 5

gram - rod
anaerobe
non-spore forming
sheep
contagious ovine foot rot

Question 6

Bacteroides, Prevotella, Fusobacterium spp., T. pyogenes
gram - or + shape
aerobe or anaerobe
spore or non-spore forming
species
clinical signs

Answer 6

gram -
anaerobe
non-spore forming
cattle
traumatic reticulopericarditis “hardware disease”

Question 7

Porphyromonas gingivalis
gram - or + shape
aerobe or anaerobe
spore or non-spore forming
species
clinical disease

Answer 7

gram - rod
anaerobe
non-spore forming
dogs/cats
periodontal disease

Question 8

treatments for footrot

Answer 8

environmental improvments
footbaths with Cu/Zn
systemic Abx
vx

Question 9

common bacteria for bovine foot rot

Answer 9

F. necrophorum
Bacteroides spp
Prevotella spp
Porphyromonas spp./levii
Trueperella pyogenes

Question 10

diagnostics for gram - anaerobes

when is it appropriate to order anaerobic culture routinely in non-GI disease?

Answer 10

do not always require culture, clinical signs are usually pathognomic, histopath

peritonitis or pleuritis in any sample
sterile sites only NO mucosal surfaces
deep tissue/abscesses samples

Question 11

why. is Trueperella spp. and Fusobacterium often found together

Answer 11

leukotoxin protects Trueperella spp. from neutrophils and Trueperella spp. (facultative anaerobe) utilizes O2 making the environment more hospital for Fusobacterium