Virulence factors Flashcards
1
Q
Actinobacillus (4)
A
- Capsule
- Exotoxin
- Cytotoxin
- Fimbriae
2
Q
Escherichia Coli (7)
A
- Capsular K antigen
- Endotoxin (Lipid A)
- Fimbriae
- Hemolysins
- Siderophores
- Enterotoxins
- Vero Toxin
3
Q
Capsular K antigen
E. Coli strains
A
- Prevention agains the immune system
4
Q
Endotoxin (Lipid A)
E. Coli strains
A
- Part of the Cell Wall
- Released after Lysis of Bacterial cell
5
Q
Fimbriae
E. Coli stains
A
- Adherent antigens
- Enable Bacteria to attach to the surface of Enterocytes
- Colonising in the Small Intestines
6
Q
Hemolysins
E. Coli stains
A
- Damage the host cell membrane
7
Q
Siderophores
E. Coli strains
A
- Binds iron
- Absolute requirement for growth of E. Coli strains
8
Q
Enterotoxins
E. Coli strains
A
- ST (Heat stable toxin)
- LT (Heat labile toxin)
- Disturbe Osmolality Balance
- Induce Hyper-Secretion into intestines
- Diarrhea
9
Q
Vero Toxin
E. Coli strains
A
- Damage Enterocytes and Blood vessels
- Causes Oedema disease in pigs
10
Q
Salmonella
A
Lipopolysaccharides
* Adherent antigens
* Somatic O antigen
* Endotoxins
Exotoxins
* Enterotoxin
* Cytotoxin
11
Q
Adherent Antigens
Salmonella
A
- Colonisation and adheres to the surface of Intestinal Mucosal Cells
ATH same ase Fimbriae
12
Q
Somatic O antigen
Salmonella
A
- Resistance to Digestion by Phagocytes
13
Q
Endotoxins
Salmonella
A
- Damage Intestinal Mucosa
- Responsible for Haemorrhage and Perforation
14
Q
Enterotoxin
Salmonella
A
- Similar affect to LT toxin of E. Coli
- Hypersecretion of fluid and electrolytes into intestines = Diarrhaea
15
Q
Cytotoxin
Salmonella
A
- Same asShigela-Like toxin
- Inhibits the synthesis of proteins of Intestinal epithelial cells
