-
3 Primary Bacterial Pathogenesis Factos:
- Host Susceptibility
- Bacterial Infectivity
- Virulence Factors
-
What alters host susceptibility?
-
What alters bacterial infectivity?
-
What alters virulence factors?
- Pili
- Non-fimbrial adhesions
- Capsule
- Toxins
-
Mannheimia haemolytica affects ____, but not ____
cattle, not dogs
-
E. coli affects ____, but not ___
neonatal calves, but not adult cattle
-
Specific strains of E. coli produce ___, causing _____ dz
-
____ has a capsule to avoid phagocytosis
Pastruella multocida
-
Pathogenic E. coli have pili to...
attach to mucosa and produce enterotoxin
-
Pathogen-
organism that causes dz
-
Infection-
establishment of pathogen in host
-
Obligate Pathogen-
non oppertunistic
-
ex. obligate pathogen:
Bacillus anthracis
-
ex. Primary Pathogen and it's secondary pathogen
- Chlamydophila felis (conjunctiva in cats)
- Staphylococcus
-
ex. Opportunistic Pathogen (2)
- E. coli -> UTI or otitis externa
- Staphylococcus w/ chlamydophilia felis in cats (also secondary pathogen)
-
ex. of exogenous pathogen
Bacillus anthracis (soil-> animal)
-
ex. of endogenous pathogen
Gingivitis in dogs from commensal
-
ex. of contagious dz's (2)
- strangles in horses (streptococcus equi)
- Pneumonic Plague in cats and humans (yersinia pestis)
-
Bordetella bronchiseptica enters via..
inhalation (dog -> cat -> pneumonia)
-
Salmonella enters via...
ingestion (feed -> cattle)
-
Lepto enters via...
Skin Abrasion, mucosa (water-> GI)
-
Brucellosis canis enters via...
Urogenital tract
-
Brucellosis enters via...
Placenta to fetus
-
E. Coli in claves enters via...
umbilicus
-
Horizontal transmission-
spread by contact, food, water
-
Vertical transmission-
Transmission from mother to offsrping during pregnancy
-
streptococcus equi is ___ specific
species
-
Brucella abortus is ___ specific
organ
|
|
