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اختبارات وزاري م2

اختبارات وزاري م2

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What is the molecular weight of the heat labile enterotoxin produced by v.cholerae?
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Which biotype of epidemic v.cholerae is resistant to polymyxin B?
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What are the three serotypes of the v.cholerae serogroup O1 antigen ?
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Which v.cholerae strains cause epidemic and pandemic cholera?
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How many serogroups are based on the O antigen of vibrio cholerae ?
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What is the function of the H antigen in many vibrios?
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Which of the following is not a characteristic of colonies of vibrio cholerae growing on thiosulfate , citrate , bile salts , and sucrose agar ?
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What is the shape of vibrio cholerae when observed under a microscope?
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Which of the following statements about vibrio cholerae growth characteristics is true ?
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What is a key step in the preliminary identification of vibrio cholerae and other vibrios ?
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Which of the following sugars is not fermented by vibrio cholerae ?
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What is the color of colonies produced by non-sucrose-fermenting vibrios on TCBS agar ?
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Which vibrio is a frequent and/or seasonal occurrence in coastal U.S regions with regular consumption of bivalve mollusks and crustaceans ?
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When should stool specimens be collected for optimal recovery of vibrios ?
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In regions where cholera is rare is routine use of TCBS agar for stool culture generally necessary ?
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In areas where cholera is endemic , what type of cultures are appropriate for stool specimens ?
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What should be done if processing of stool specimens may be delayed?
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Which vibrios produce green colonies on TCBS agar?
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What is the pH range at which vibrios including v.cholerae grow well ?
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What color colonies does v.cholerae produce on TCBS agar ?
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