lecture 5 bacteria Flashcards
pathogen
organism capable of causing a disease
microbe free liquids
blood, urine, CSF
microbe free tissues
muscles
bones
how does normal flora fight bacterial infection
competition for food
what found in the eyes degrades cell walls
lysozymes
faculative pathogen
can grow in another environement
what factors support bacterial infection
virulence
what do adhesins allow
attatch to surfaces
flagella use
motility
type 3 secreted molecules
injected directly into the host cell
endotoxin
cell bound toxin
endotoxin heat stability? and why
stable - not a protein
endotoxin symptoms
general
toxicity of endotoxin
weak
exotoxin
released extracellularly
enterotoxins
act on the small intestine
toxoid
inactivated toxin
haemolysin
breaks down haemoglobin
bacteria evasion of the immune system
intracellular molecular mimicary change coat capsule IgA protease