KEY WORDS Flashcards
Key words that might correlate to a specific organism/disease
Quellung Reaction (Capsular swelling)
Streptococcus pneumoniae
Scarlet Fever
Streptococcus pyogenes
Optochin susceptible
Streptococcus pneumoniae
Glycocalyx (slime layer biofilm)
Staphylococcus epidermidis
Otitis media in children / Acute otitis media
Streptococcus pneumoniae
Endocarditis
Staphylococcus epidermidis
Novobiocin susceptible
Staphylococcus epidermidis
Scalded skin syndrome
Staphylococcus aureus
Subacute bacterial endocarditis
Strep viridians
Capsule contains sialic acid
Streptococcus agalactiae
Tumbling motility on gram stain
Listeria monocytogenes
Positive amine or “whiff” test
Gardnerella vaginalis
Gliding motility
Capnocytophaga
Streptococcus that causes dental infections
Strep viridians
Strep that causes abscesses brain/abdomen
Strep viridians –> S. anginosus
Anthrax
Bacillus anthrasis
“Medusa Head Colonies”
Bacillus anthrasis
Box car
Bacillus species
Black escher ulcers
Bacillus anthrasis
Skin contact with livestock hides
Bacillus anthrasis
Lancet shape in pairs
S. pneumoniae
“Ground glass” colony appearance
Bacillus anthrasis
Rapid motility in urine sediment
Trichomonas vaginalis
“Clue cells” - large squamous epithelial cells
Gardnerella vaginalis
“Internal autoinfection”
Strongyloides stercoralis – larvae capable of turning into infective form in intestines of immunocompromised people
Dermatophytes resembling “Birds on a wire”
Trichophyton rubrum
Gram positive bacilli, beaded and branching chains
Nocardia
Umbrella growth in motility agar at room temp but NOT at 35C
Listeria monocytogenes
Cuneiform morphology
Corynebacterium
“Chinese Letters” morphology
Corynebacterium
Black colonies on cysteine-tellurite agar
Corynebacterium
Black colonies with brown halo on Tindale agar
Corynebacterium
Metachromatic granules
Corynebacterium diptheriae
Dead cell pseudomembrane at back of throat
Corynebacterium diptheriae
Not other Corynebacteriums
Skin infection from fish
Erysipelothrix
Satelliting
Haemophilus growing around SA colonies due to it producing NAD factor (V) factor, and hemolyzes the blood releasing hemin (X factor)
“Test tube brush growth” in gelatin
Erysipelothrix
“Bamboo shoot”-looking chains in gram stain
B. anthrasis
“Fried rice” syndrome (food poisoning in fried rice due to toxin)
Bacillus cereus
Fried rice.. you gotta B. cereus?
Neonatal meningitis and sepsis
Listeria monocytogenes
Pink eye
Haemophilus influenza subgroup aegyptius
STD chancroid (genital ulcers, swollen lymph nodes/buboes)
Haemophilus ducreyi
Corkscrew motility
Campylobacter jejuni
Rice water stools
Vibrio cholerae
Freshwater seafood poisoning
Pleisomonas shigelloides
Can get from freshwater and seawater
Aeromonas
Salt water
Vibrio vulnificus and Vibrio parahaemolyticus
Positive string test
Vibrio cholerae
Halophilic organism that requires Na+
Vibrio vulnificus and Vibrio parahemolyticus
Xenodiagnosis to detect?
Trypanosoma cruzi (Chagas disease) --> this is when a non-infected kissing bug feeds on a patient suspected of someone who has Chagas disease. Bug droppings are then examined for presence of T. cruzi trypomastigoes.
“School of fish,” and associated with Chancroids
Haemophilus ducreyi
“Safety pin”, bipolar staining
Yersinia pestis
Sepsis via blood transfusions
Yersinia entero
Carbuncles
Staph aureus
“Drops of mercury” colonies on Bordet-Gengou
Bordetella pertussis
Whooping cough
Bordetella pertussis
Spiral organism seen in urine
Leptospira
Bleach-like odor
Eikenella
Growth on kanamycin, vancomycin, laked blood agar
Bacteroides and Prevotella
Olive oil (lipids) for growth
Malassezia furfur
Small yeast with wide bud
Malassezia furfur
Yeast that causes catheter-related sepsis
Malassezia furfur
Cat scratch
Pasteurella
needs Cysteine for growth
Francisella tularensis
partially acid fast, growth above 37C
Nocardia
Deer tick of Ixodes genus
Borrelia burgdorferi
Lyme disease
Borrelia burgdorferi
fried egg appearance
Mycoplasma hominis
class 3 pathogen, usually labs send isolates to reference labs, found in blood culture
Brucella spp.
commonly misidentified as an enteric pathogen to the large amount of H2S it produces
Shewanella putrefaciens
Bordetella urease:
___________ = rapid urease
___________ = pos at 18 hours
___________ = negative
B. bronchiseptica – rapid urease
B. parapertussis – pos at 18 hours
B. pertussis = negative
S-shaped rod, hippurate +, 42C
Campylobacter jejuni
associated with explosive diarrhea, can be acquired through eating raw shellfish
Vibrio parahemolyticus
Urease positive organisms
PUNCH - Proteus, Ureaplasma, Nocardia, Cryptococcus, H. pylori
Largest human parasite eggs known (~150 µm in diameter)
Fasciola hepatica & Fasciolopsis buski
shows motility at 25°C and not 35°C
Yersinia
Can grow at 37°C but unique it ints ability to grow at 42°C
Pseudomonas aeruginosa
Pyocyanin production
Pseudomonas aeruginosa
Red with black center on XLD agar
Salmonella
Swimmer’s ear
Pseudomonas aeruginosa
Contact lens keratitis
Pseudomonas aeruginosa
Acanthamoeba keratitis
Acanthamoeba
Predominant organism in patients with cystic fibrosis
Pseudomonas aeruginosa
Grape-like odor
Pseudomonas aeruginosa
How to differentiate between Campylobacter jejuni, and Campylobacter ecoli & fetus
C. jejuni –> hippurate positive
C. coli & feus –> hippurate negative
Yeast that can remain viable but dormant in macrophages for many years.
Mycobacterium tuberculosis
Hantavirus vector
Deer mouse
“cotton candy-like” mycelium
Zygomycete
Carbuncles
S. aureus
Polymyxin B susceptible
P. aeruginosa
Infection in Cystic Fibrosis patients
Psudomonas aeruginosa –> mucoid in CF patients
Burkholderia cepacia –> serious infection in CF patients
serious infection in CF patients
Burkholderia cepacia
“Mousy odor”
Pasteurella multocida (contracted from cat and dog bites)
“Rat bite fever”
Streptobacillus moniliformis
Acute epiglottis in children
Haemophilus influenzae
positive lecithinase on egg yolk agar
Clostridium perfringes
virus associated with infantile respiratory bronchiolitis
RSV (the virus that infants get if someone kisses them!)
Entamoeba with evenly distributed peripheral chromatin
E. histolytica (pathogenic)
Psittacosis
Chlamydophila psittaci
psittaci kinda ryhmes with biscotti cracker = crackers to birds
Bacteria transmitted from bird droppings to humans via inhalation
is associated with the Eucalyptus tree and found in the environment
Cryptococcus gattii
Found in pacific northwest
Is associated with soil contaminated with pigeon droppings and is acquired by inhalation
C. neoformans
causes infections as a result of trauma to the skin and exposure to contaminated fish tanks or salt water.
Mycobacterium marinum
only clinically encountered yeast that is phenol oxidase positive
Cryptococcus neoformans