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