Various gram neg rods I Flashcards
gram neg/pos? shape? bordetella
gram neg coccobacilli
what kind of fermentation does bordetella do
aerobic
is bordetella a ferementer
no
T or F: bordetella is fastidious
T
what organism causes pertussis (whooping cough)
bordetella pertussis
what organism causes mild pertussis
bordetella parapertussis
what does bordetella bronchiseptica cause
respiratory disease in animals and occasionally in human
what does bordetella holmsii cause
sepsis
is bordetella an endogenous or exogenous infection
exogenous
t or f: bordetella is part of the normal microbiome
F
what allows bordetella to adhere to ciliated epithelial cells in the respiratory tract (3)
pili, adhesins pertactin, and filamentous hemagglutinin
where in the body does bordetella proliferate
respiratory tract
what toxin does bordetella have that causes pertussis
tracheal cytotoxin
what toxin does bordetella have that increases cAMP and increases respiratory secretions
pertussis toxin
is there a vaccine for bordetella pertussis
yes
T or F: bordetella pertussis is a strict human pathogen
T
who is most likely to be unvaccinated for bordetella
older kids and young adults
how is bordetella transmitted
aerosols
what stage of pertussis has common cold symptoms and pts are very infectious
catarrhal
what stage of pertussis is paroxysm and production of mucous
paroxysmal
what stage of pertussis has decreased symptoms
convalescent
what kind of media does bordetella grow on
supplemented
what does ELISA detect when testing for bordetella (4)
pertussis toxin, filamentous hemagglutinin, pert actin, and pili abs
what cardiobacterium cause endocarditis
cardiobacterium hominis and cardiobacterium valvarum
is cardiobacterium gram pos/neg? shape?
gram variable pleomorphic rods
t or F: cardiobacterium is motile
F
what kind of respiration does cardiobacterium do
facultative anaerobe
T or F: cardiobacterium are ferementers
T
what is the oxi and cat results of cardiobacterium
oxi pos and cat neg
which cardiobacterium is apart of the upper respiratory tract normal microbiome
cardiobacterium homis
is someone develops endocarditis from cardiobacterium what other preexisting conditions do they have
pre existing hear disease and oral disease/dental procedure
what does it mean for cardiobacterium disease to be insidious and subacute
nonspecific sym
how is cardiobacterium diagnosed
blood culture
T or F: cardiobacterium grows on MAC
F
what antibiotics are used to treat cardiobacterium
penicillin or ampicillin
is legionella gram pos/neg? shape?
slender, pleomorphic gram neg rods
is legionella a fermenter
no
what kind of respiration does legionella do
obligate aerobes
t or f: legionella stains poorly
T
T or F: legionella is easy to grow
F
what does legionella require to grow
l-cysteine and iron salts
where is legionella ubiquitous
dead stuff in the water
what kind of pathogen is legionella pneumophilia
facultative intracellular pathogen
what cells does legionella pneuomphilia replicate in
alveolar macrophages in LCV (vacuole)
what type secretion system does legionella use
type IV
what is the function of the effectors that the type IV secretion secretes (legionella)
prevent phagosome lysosome fusion
what kind of immunity helps with clearing a legionella infection
cell mediated
what kind of infections does legionella cause (3)
sporadic, epidemic, and nosocomial
what is legionella resistant to
high temps and disinfectant
T or F: legionella can form biofilms
T
how is legionella transmitted
aerosols
T or F: legionella can not be spread person to person
T
what age group is most likely to get a legionella infection
people over 40
who is at high risk of a legionella infection
comp pulmonary function and decreased cellular immunity
what bacteria causes Pontiac fever
legionella
what are the symptoms of Pontiac fever
cold sym
what bacteria causes legionnaires disease
legionella
what is the primary infection of legionnaires disease
Pneumonia
T or F: only one organ is effected in legionnaires disease
F
what kind of media is used to grow legionella
buffered charcoal yeast extract
what is the color of legionella colonies
ground glass
what special ags are in the urine of legionella infection
serogroup 1 specific LPS
what kind of antibiotics are used to treat legionella
macrolides or fluoroquinolones
what is used to ionize the water in hospitals to help with legionella
copper-silver
