Bacteriology 1 Flashcards
streptococcal pharyngitis
streptococcus pyogenes
Group A lancefield
Beta hemolytic
Bacitracin sensitive
M protein
Streptolysin S & O
Gram positive
catalase -
scarlet fever
streptococcus pyogenes
Group A lancefield
Beta hemolytic
Bacitracin sensitive
M protein
Streptolysin S & O
Gram positive
catalase -
rheumatic fever
sequelae (most dangerous: heart)
streptococcus pyogenes
Group A lancefield
Beta hemolytic
Bacitracin sensitive
M protein
Streptolysin S & O
Gram positive
catalase -
puerperal fever
septicemia following child birth
streptococcus pyogenes
Group A lancefield
Beta hemolytic
Bacitracin sensitive
M protein
Streptolysin S & O
Gram positive
catalase -
erysipelas
massive brawny edema
streptococcus pyogenes
Group A lancefield
Beta hemolytic
Bacitracin sensitive
M protein
Streptolysin S & O
Gram positive
catalase -
neonatal meningitis
streptococcus agalactiae
group B lancefield
beta hemolytic
gram positive
catalase -
neonatal pneumonia
streptococcus agalactiae
group B lancefield
beta hemolytic
gram positive
catalase -
neonatal sepsis
streptococcus agalactiae
group B lancefield
beta hemolytic
gram positive
catalase -
adult otitis media
streptococcus pneumoniae
kidney bean
group B lancefield
alpha hemolytic
quellung reaction (methylene blue)
optochin test
Gram +
catalase -
adult meningitis
streptococcus pneumoniae
kidney bean
group B lancefield
alpha hemolytic
quellung reaction (methylene blue)
optochin test
Gram +
catalase -
adult pneumonia
streptococcus pneumoniae
kidney bean
group B lancefield
alpha hemolytic
quellung reaction (methylene blue)
optochin test (sensitive)
Gram +
catalase -
subacute bacterial endocarditis
streptococcus viridans
no group classification
optochin test (not sensitive)
Gram +
catalase -
UTI & sepsis
enterococcus faecalis
group D streptococci
gamma hemolysis
Gram +
catalase -
grapelike golden yellow colony
staphylococcus aureus
gram +
catalase +
S. aureus: spreading factor
hyaluronidase
S.aureus: lyses fibrin
staphylokinase
gastroenteritis
staphylococcus aureus (enterotoxin)
food poisoning
gram +
catalase +
toxic shock syndrome
staphylococcus aureus (TSS toxin)
high fever + low diastolic BP
gram +
catalase +
scalded skin syndrome
staphylococcus aureus (exfoliation toxin)
loss of epidermis
gram +
catalase +
acne
staphylococcus aureus (direct organ invastion)
gram +
catalase +
acute bacterial endocarditis
staphylococcus aureus (direct organ invastion)
sudden onset
gram +
catalase +
prosthetic heart valve endocarditis
staphylococcus epidermis
adheres to artificial materials in body
novobiocin sensitive
gram +
catalase +
Staphylococcus differentiation: S.aureus
Colony: golden
coagulase: +
catalase: +
novobiocin: sensitive
hemolysison: +
Staphylococcus differentiation: S. epidermidis
Colony: white-gray
catalase: +
coagulase: -
novobiocin: sensitive
hemolysison: -
Staphylococcus differentiation: S. saprophyticus
Colony: white-gray
catalase: +
coagulase: -
novobiocin: resistant
hemolysison: -
anthrax
bacillus anthracis
cutaneous: tissue necrosis
respiratory: wool sorter’s disease
GI: rare but fatal
Medusa/bamboo
Gram +
spore forming rod
only glutamate (AA) capsulated bacteria
bacillus anthracis
medusa head colony (square/bamboo)
3 protein components in capsule:
protective antigen
edema factor
lethal factor
Gram +
spore forming rod
fried rice diarrhea
bacillus cereus
found in starchy food
Gram +
spore forming rod
Flaccid paralysis
clostridium botulinum
botox (most potent neurotoxin)
(-) ACh release
Gram +
spore forming rod
floppy baby
aka infant botulinum
clostridium botulinum
from contaminated honey syrup
Gram +
spore forming rod
spastic paralysis
clostridium tetani
tennis rocket appearance
tetanospasmin (-) GABA & glycine release
Gram +
spore forming rod
Tetanus: Signs
trismus - lock jaw
risus sardonicus - dog smile
opisthothonus - arching of back
gas gangrene
clostridium perfringens
a-toxin (lecithinase)
Gram +
spore forming rod
pigbel disease
aka enteritis necroticans
clostridium perfringens
b-toxin
Gram +
spore forming rod
common cause of food poisoning
clostridium perfringens
Gram +
spore forming rod
pseudomembranous colitis
clostridium difficile
Gram +
spore forming rod
most common cause of superinfection
clostridium difficile
Gram +
spore forming rod
most common cause of diarrhea in AIDs patients
clostridium difficile
Gram +
spore forming rod
bull-neck diphtheria
corynebacterium diphtheriae
loeffler’s bacillus
chinese palisades
(-) elongation factor 2
club shaped rod
Gram +
non-spore forming rod
only gram + with endotoxin
listeria monocytogenes
tumbing “roll & fall” motility at 22C
umbrella growth pattern
catalase+
Gram +
non-spore forming rod
