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31 Cards in this Set
- Front
- Back
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Family Neisseriaceae |
gram-negative cocci, residents of mucous membranes of warm-blooded animals |
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Neisseria |
gram-negative, bean-shaped, diplococci, no flagella or spores |
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Neisseria gonorrhoeae |
caused gonorrhea, an STD virulence factors: pili, other surface molecules, IgA protease In top 5 STDs |
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Neisseria meningitidis |
virulence factors: capsule, pili, IgA protease many strains exist, prevalent cause of meningitis |
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Septic Shock-Endotoxic shock |
LPS (lipopolysacchardide) component of gram negative cell wall is a potent immune stimulant |
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Pseudomonas |
small gram-negative rods with a single polar flagellum, produce oxidase & catalase
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Pseudomonas aeruginosa |
common inhabitant of soil & water intestinal resident in 10% normal people grapelike odor |
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Brucella |
tiny gram-negative coccobacilli |
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Francisella tularensis |
causes tularemia, a zoonotic disease of mammals endemic to the northern hemispheere, particularly rabbits |
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Bordetella pertussis |
minute, encapsulated coccobacillus, causes pertussis or whooping cough, a communicable childhood affliction |
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Alcaligenes |
live primarily in soil & water, may become normal flora |
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Legionella pneumophila |
widely distributed in water, live in close association with amebas, Legionnaires disease |
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Enterobacteriaceae Family |
large family of gram-negative bacteria, all members are small, non-sporing rods |
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Diarrheal Disease: toxigenic |
organism itself does not invade the tissue |
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Diarrheal Disease: invasive |
microbes breakdown epithelial cells and form ulcerations. May see bleeding |
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Escherichia coli |
most common aerobic & non-fastidious bacterium in gut |
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Klebsiella pneumoniae |
normal inhabitant of respiratory tract, has large capsule, cause of nosocomial pneumonia, mennigitis, bacteremia, wound infections & UTIs |
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Enterobacter |
UTIs, surgical wounds |
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Serratia marcescens |
produces a red pigment, causes pneumonia, burn & wound infections, septicemia & meningitis |
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Citrobacter |
opportunistic UTIs & bacteremia |
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Proteus |
swarm on surface of moist agar in a concentric pattern |
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S. typhi |
typhoid fever- ingested bacilli adhere to small intestine, cause invasive diarrhea that leads to septicemia. Asymptomatic carries perpetuate and spread the bacteria. |
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S.enteritidis |
1,700 serotypes- can be zoonotic (fecal contamination of food products) |
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S.dysenteriae, S,sonnei, S.flexneri & S.boydii |
invades large intestine, can perforate intestine or invade blood virulence factors: endotoxin & exotoxins |
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Yersinia pestis |
nonenteric... tiny, gram-negative rod virulence factors: capsular & envelope protein that protect against phagocytosis & foster |
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Pasteruella multocida |
zoonotic genus, opportunistic infections, animal bites or scratches cause local abscess that can spread to joints, bones, & lymph nodes |
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Hemophilus |
tiny gram-negative pleomorphic rods, fastidious cant grow on blood agar without special techniques, some species are nomral colonists of upper respiratory tract or vagina |
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H.influenzae |
acute bacterial meningitis, epiglottitis, otitis media, sinusitis, pneumonia, & bronchitis |
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H.aegyptius |
conjuctivitis, pink eye |
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H.ducreyi |
chancroid STD |
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H.parainfluenzae & H.aphrophilus |
normal oral & nasopharyngeal flora; infective endocarditis |
