Gram Neg Bacilli
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| What does H. influenzae cause? | Purulent meningitis in children (genus: Hemophilus)
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| What is the name of the immunization given to prevent infection with H. influenzae? | Hib Hemophilus- influenza type: B
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| Which Gram negative bacilli are tiny, fastidious ? | H. influenzae, H. ducreyi, H. aegyptious
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| Which Gram negative bacilli causes conjunctivitis (pink eye)? | H. aegyptious
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| What does H. ducreyi cause? | Soft cancre or chancroid (STD ulcer with soft edges)
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| What are clue cells? | Gram stain of discharge; will show squamous A # of species in excess epithelial cells covered with tiny Gram Neg Bacilli
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| What does Gardnerella vaginalis cause? | Vaginitis, NGU (non gonoccal urethritis in men)
Diagnosed with clue cells
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| What does Bordetella pertussis cause? | Whooping cough
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| What does the "P" in the DPT immunize against? | Pertussis
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| Which type of bacilli inhabit/cause disease in the intestine? | Enteric bacilli
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| What characteristics do all Enterobacteriaceae have? | **REMEMBER all forment glucose;
(all Gram Neg, aerobic..)
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| What grows on an EMB (eosin methylene blue, lactose) plate? | Only Gram Neg bacilli, this plate is selective and differential.
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| On EMB what do colonies that ferment lactose look like? | Have a dark, purple center
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| On EMB what do colonies that do not ferment lactose look like? | Colorless center
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| What does E. coli (Escherichia coli) look like on EMB? | Metallic sheen; lactose positive
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| What can E. coli cause? | UTI, pyelonephritis, infant diarrhea, enteropathic - enterotoxin causing dehydration, diarrhea, death
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| How is E. coli used in a coliform count? | As an indicator of fecal contamination
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| What does Shigella dysenteriae cause? | Bacillary dysentery; enteric pathogen
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| Where does Shigella primarily cause damage? | In intestine, does not enter blood stream, multiplies in intestine, invades mucous membranes produces intestine ulcers
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| How is Shigella transmitted? | oral fecal route, contaminated water
5 Fs feces, fingers, food, flies, fomites (objects)
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| What does oral fecal route mean? | From feces of pt./carrier into the mouth of the victim.
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| What does Salmonella typhosa cause? | Causes typhoid fever - enteric pathogen
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| How is S. typhosa transmitted? | Oral fecal
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| What does a person ingest that causes Salmonella food poisoning? | A large # of organisms - other animal species.
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