entry and spread Flashcards
S. aureus multiplication
can grow in almost any tissue site
S. aureus entry
entry via skin to skin contact, injury from contaminated object, inhalation, ingestiion
S. pyogenes multiplication
extracellular growth on mucous membranes, skin, deep tissue
S.pyogenes entry
person to person via respiratory droplets, skin to skin contact, contact w/ fomite
S. pneumoniae multiplication
extracellular growth on mucous membranes of respiratory tract or in blood
S. pneumoniae entry
person to person through respiratory droplets
B. anthracis entry
point source via innoculation of spores into break in skin, inhalation, ingestion (rare)
B. cereus multiplication
can grow in almost any tissue site
B. cereus entry
ingestion of contaminated food
L. pneumophila multiplication
intracellular growth in alveolar macrophages, prevents maturation of phago-lysosome
L. pneumophila entry
inhalation of aerosols of contaminated water
L. monocytogenes multiplication
intracellular growth in intestinal epithelial cells, M-cells, macrophages, neutrophils, replicates in cytoplasm - escapes the phagosome
L. monocytogenes entry
ingestion of contaminated food
M. tuberculosis multiplication
intracellularly in colonies of alveolar macrosphaes, replicating in specialized vacuole and/or possibly cytosol - resistance to phagolysosome digestion components, prevent maturation of phagolysosome
M. tuberculosis entry
human to human spread via inhalation of contaminated respiratory secretions
C. diphtheriae multiplication
extracellular in oropharynx
C. diphtheriae entry
inhalation of contaminated respiratory droplets
B. pertussis multiplication
extracellular