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20 Cards in this Set
- Front
- Back
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Serological type of Ecoli w' cause neunatal meningitis |
K1 |
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What is the Serological type of EHEC? |
O157H7 |
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What is the causative organism of traveller's diarrhea |
ETEC |
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What is the causative organism of infantile diarrhea |
EPEC |
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What is the cultral characteristic of EHEC that specific for its diagnosis |
Does not ferment sorbitol |
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Why antibiotic is contraindicated in case of EHEC |
As it may ++ risk of HUS by increasing shiga toxin release from dying bacteria |
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Citrobacter differ from e coli by |
Being citrate +ve |
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Enterobacter differ from e coli by |
Being motile |
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E. Coli with macConkey |
Rose pink colonies |
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Klebsiella with macConkey |
Rose pink colonies |
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Salmonella with macConkey |
Pale colonies |
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Tetrathionate broth |
Enrichment media for isolation of salmonella from stool |
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What ment by antibody titre |
The heights dilution of serum showing agglutination |
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In w' cases there is False+ve vidal test with salmonella |
1- cross reaction antibodies witg other members of enterobacterecea 2- epidimicity 3-vaccination |
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In w' cases there is False-ve vidal test with salmonella |
1- first week if infection 2-early antibiotic treatment |
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Shigella e' macConkey |
Pale colonies |
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Shigella differ from salmonella in |
1-non motile 2-no H2S production 3-no gas production from glucose fermentation |
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Produce swarm on nutrant agar |
Proteus |
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How to diffrunciate bw salmonella qnd proteus? |
Proteus is urease +ve |
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Yersinia and macConkey |
Pale colonies Small pinpoint |
