Microbio Flashcards
Gram staining
Gram +: thick peptidoglycan layer
Gram -: thinner wall
Staphylococcus aureus
Gram +, catalase +, coagulase +, cocci, beta hemolytic, ferment mannitol, superantigen toxic shock syndrome
bacterial pneumonia, UTI, septic arthritis, osteomyelitis, food poisoning,
Staphylococcus epidermidis
Gram +, catalase +, urease +, cocci
UTI, infects artificial joint, endocarditis
Streptococcus pyogenes
Gram +, group A, cocci, streptolysin O, encapsulated
impetigo, pharyngitis, cellulitis, eriseplas, rheumatic fever, glomerulonephritis,
exotoxin: scarlet fever, toxic shock syndrome, necrotizing fasciitis
Streptococcus agalactiae
Gram +, group B, cocci, encapsulated, b-hemolytic,
meningitis, sepsis, pneumonia
Brodetella pertussis
whooping cough
gram - coccobacilli, endotoxin,
Campylobacter jejuni
toxic megacolon, reactive arthritis
gram -, comma-shaped rod, flagellum, anaerobic, oxidase-positive,
Citrobacter
UTI
gram -, bacilli, facultative anaerobes
Enterobacter
UTI, respiratory infx in those hospitalized, skin infections w/ surgery and burns
gram -, facultative anaerobes, rod, non-spore forming, urease +, lactose-fermenting, motile
E coli
diarrhea (enterotoxigenic), UTI, hemolytic uremic syndrome (enterohemorrhagic)
gram -, rod, facultative anaerobes, catalase +, encapsulated, flagella, shiga/heat-labile
Haemophilus influenzae
meningitis, epiglottitis, otitis media, pneumonia
gram - coccobacilli, encapsulated or unencapsulated, facultative anaerobic, endotoxin
H. pylori
peptic ulcers
gram -, curved rod, flagella, urease and catalase +, microaerophile
Klebsiella pneumoniae
pneumonia, wound infx, meningitis, UTI
gram -, bacilli, facultative anaerobes, urease +
N. gonorrhoeae
urethritis, prostatitis, orchitis, cervicitis, gonococcal ophthalmia, dermatitis
gram -, diplococci, IgA protease
N meningitidis
meningitis, gangrene of toes, DIC, Waterhouse-Friderichsen syndrome, pharyngitis, intense myalgias, petechial rash
gram -, diplococci, IgA protease, polysaccharide capsule, maltose acid detection
Pasteurella multocida
respiratory infx, cellulitis
gram -, coccobacillus, encapsulated, facultative anaerobic, oxidase and catalase +, nitrate reductive +
Proteus mirabilis
pneumonia, wound infx, UTI
gram -, bacilli, motile, facultative anaerobic, urease +
Salmonella typhi
GI, septicemia, typhoid fever
gram -, rod, facultative anaerobic and pathogens, encapsulated, flagella, produce hydrogen sulfide, sensitive to gastric acid
Serratia marcescens
hospitalized pt, pneumonia, UTI, bacteremia, sepsis, endocarditis, meningitis
gram -, bacillus, motile, facultative anaerobic, urease +, catalase +, DNASE, Lipase
Shigella
diarrhea, dysentery, neuron damage
gram - bacilli, facultative anaerobe, shiga toxin,
Yersinia Enterocolitica and pestis
bubonic (lymph nodes) plague, heart/lungs, sepsis, appendicitis
gram -, coccobacillus, bipolar staining, facultative anaerobe and intracellular, catalase +
What are exotoxins?
group of soluble proteins that are secreted by the bacterium, enter host cells, and catalyze the covalent modification of a host cell component(s) to alter the host cell physiology