Term
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Definition
stain pink
largest group of human pathogenic bacteria
have Lipid A
best growth at 37 celcius |
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Term
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Definition
gram negative cocci(only neg cocci)
diplococci(pairs)
nonmotile
aerobic
oxidase positive |
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Term
|
Definition
causes gonorrhea
gonococci adhere to genitals, urinary and digestive tract
asymptomatic in women, triggers pelvic inflammatory disease |
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Term
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Definition
normal microbiota of upper resp
life threatening in blood system
can cause death in 6hrs
septicema - blood poisoning |
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Term
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Definition
gram negative bacilli
facultative anaerobic
most human pathogens
2 types - enterobacteriaceae and pasteurellaceae |
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Term
| Gammaproteobacteria Enterobacteraceae |
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Definition
Enteric bacteria
oxidase negative
3 groups - coliform, non coliform, true pathogens
intestinal microbiota
found in water, soil and decaying vegetation
most common gram neg pathogen |
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Term
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Definition
coccobacilli or bacilli
motile
multiple fagella
capsules or slime lsayers
aerobic
ferments glucose
reduces nitrate to nitrite
has LPS lipopolysaccharide |
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Term
|
Definition
common antigen - core pollysaccharide
O polysaccharide - antigenic varieties
Lipid A - triggers fever, vasodialation, inflammation |
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Term
| Enterobacteriaceae virulence factors |
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Definition
fimbria, exotoxins, adhesions, virulence plasmids, hemolysis
sideophores - capture iron Fe
**Type III secretion - span peptidoglycan, enter host cell and introduce proteins
detected with McKonky agar |
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Term
| Enterobacteriaceae Coliform |
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Definition
gram negative bacilli
aerobic or facultative aerobic
ferment lactose(fast)
found in soil, plants and digestive tracts |
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Term
|
Definition
Opportunistic Enterobacteriaceae
gram negative bacilli
coliform
most important colifrom
has virulent plasmids
causes gastroenteritis
**E. Coli 0157:H7 most prevalent |
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Term
|
Definition
Enterobacteriaceae Opportunistic Coliform
gram negative bacilli
facultative anaerobic
found in digestive and resp system
capsules protect bacteria from phagocytosis
K. pneumoniae - causes pneumonia, bacteremia, meningitis, UTI's |
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Term
|
Definition
Enterobacteriaceae Opportunistic Coliform
gram negative bacilli
facultative anaerobic
produces red pigment at room temp
grows on catheteres, saline solutions, and hosp supplies
life threatening opportunistic |
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Term
| Enterobacter, Hafnia, and Citrobacter |
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Definition
Enterobacteriaceae Opportunistic Coliform
gram negative bacilli
found in digestive tract
noscomial infections
difficult to treat |
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Term
|
Definition
Enterobacteriaceae Opportunistic NON coliform
gram negative bacilli
facultative anaerobic
CAN NOT ferm lactose
UTI's from long term catheters
induces kidney stones
resistant to many drugs
has Urease - breaks down urea into CO2 and NH3 |
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Term
| Morganella, Providencia, Edwardsiella |
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Definition
Enterobacteriaceae Opportunistic Non Coliform
gram negative bacilli
facultative anaerobic
noscomial in immunocompromised patients
UTI's
has Urease - turns pink if positive |
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Term
| Slamonella, Shigella, Yersinia |
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Definition
Truly Pathogenic Enterobacteriaceae
gram negative bacilli
facultative anaerobic
always produces pathogen
produce type III secretion systems
-proteins inhibit phagocytosis
-rearrange cytoskeletons and induce apoptosis(cell death) |
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Term
|
Definition
gram negative motile bacilli
found in intestines/feces of birds, mammals, reptiles
poultry and eggs common sources
causes salmonellosis and typhoid fever
can lead to peritonitis-perforation of intestine wall |
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Term
|
Definition
gram negative nonmotile bacilli
primary parasite in human dig tract
shiga toxin - enterotoxin
causes shigellosis dysntery |
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Term
|
Definition
gram negative bacilli
normal pathogen of animals
has virulence plasmas
codes for adhesions
Type III secretion system
causes bubonic plague and pnuemonic plague |
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Term
|
Definition
pathogenic gram negative bacilli
facultative anaerobic
has oxidase
normal microbiota in oral and nasal cav
require heme/cytochromes for growth
causes pasteurella and haemophilus |
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Term
|
Definition
caused by Pasteurellaceae
have capsule that resist phagocytosis
H. influenza Type B most common source of meningitis
HIB vaccine
HIB-4 vaccine for Type B |
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Term
|
Definition
sexually transmitted
causes genital ulcers - chancroid
asymptomatic in women |
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Term
|
Definition
gram negative aerobic bacilli
found in animals but causes disease in humans
3 species - Bartonellosis fatal headaches
trench fever - transmitted by human lice
cat scratch fever - local swelling |
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Term
|
Definition
gram negative aerobic coccobacilli
nonmotile
causes brucellosis - asymptomatic mild disease contaminated dairy products |
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Term
|
Definition
gram negative aerobic nonmotile coccobacillus
causes pertusis - whooping cough
4 toxins - pertusis toxin, adenylate cyclase toxin, dermonecrotic toxin, tracheal cytotoxin |
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Term
|
Definition
gram negative aerobic bacilli
flagellated
decomposes organic molecules
cleans up environment
used by farmers
opportunistic in cystic fibrosis patients |
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Term
|
Definition
gram negative aerobic bacilli
problematic in hospitals
pseudomonas aeruginosa rarely cause diseasse, can colonize any organ/system, biofilm protects from phagosytosis |
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Term
|
Definition
| opportunistic of sinuses, bronchi, ears, lungs |
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Term
| Pseudomonads acinetobacter |
|
Definition
grows in soil, water, sewage
resp tract
Urinary tract
CNS |
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Term
|
Definition
gram negative aerobic pleomorphic
found in water
intracelluar parasite
causes pneumonia |
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Term
|
Definition
gram negative aerobic bacilli
extremely small
infective spores
can live inside phagolysosome(obligate)
microbiota of GI, lower resp
***important to human health, synthesizes vitamins, vitamin precursor, aids digestion |
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Term
|
Definition
gram negative anaerobic bacilli
normal microbiota
Bacteroides fragillis - abdominal infection, genital infection in women, wound infection on skin |
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Term
|
Definition
gram negative anaerobic bacilli
causes sinus/ear infections, peridontal infection, gynecological infections, brain abcesses |
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