Gram negative and Gram positive bacteria Flashcards
what are the two major groups of gram negative bacteria?
aerobic bacilli and enteric pathogens
what are aerobic bacilli
gram negative bacteria, large diverse group of non-spore-forming bacteria
What is the habitat of aerobic bacilli
large intestine, respiratory tract, soil, water, zoonotic
why do aerobic bacilli not ferment carbs
they have LPS endotoxin
examples of aerobic bacilli
pseudomonas aeruginosa, Brodetella pertussis, legionella pneumorphilia
What are the reservoirs for enteric pathogens
intestines
what groups of people are more susceptible to opportunistic infections
very young, elderly, aids, pregnancy, surgery outpatients, immunocompromised
what are enteric pathogens
large family of non-spore-forming gram negative rods.
example of enteric pathogens
E. coli
what does the O,K and H stand for in nomenclature of E. coli strands?
O: part of the LPS
K: refers to capsule
H: referring to flagellin
