Question 1

Transmission of Aeromonas spp.to humans is by

Accepted Answer

A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. 
A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. B

Question 2

Transmission of Plesiomonas shigelloides to humans is by

Accepted Answer

A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. 
A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. B

Question 3

Profuse watery diarrhea ("rice water stools"), leading to dramatic fluid loss, severe dehydration, and hypotension that frequently leads to death, is the hallmark of infection with which bacterial species?

Accepted Answer

A) Aeromonas hydrophila 
B) Vibrio cholerae 
C) Vibrio vulnificus 
D) Plesiomonas shigelloides 
A) Aeromonas hydrophila 
B) Vibrio cholerae 
C) Vibrio vulnificus 
D) Plesiomonas shigelloides B

Question 4

Profuse watery diarrhea ("rice water stools"), leading to dramatic fluid loss, severe dehydration, and hypotension that frequently leads to death, is the hallmark of which toxin activity?

Accepted Answer

A) Cholera toxin (CT) 
B) Enteric endotoxin 
C) Shiga toxin 
D) Toxin A 
A) Cholera toxin (CT) 
B) Enteric endotoxin 
C) Shiga toxin 
D) Toxin A

Question 5

The primary habitat for Plesiomonas shigelloides and Chromobacterium violaceum is

Accepted Answer

A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment. 
A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment.

Question 6

Which statement best describes the habitats of Vibrio spp., Aeromonas spp., Plesiomonas shigelloides, and Chromobacterium violaceum?

Accepted Answer

A) The habitats are limited to the upper respiratory tract of various mammals. 
B) The habitats vary from the soil and water environment to the upper respiratory tract of various mammals. 
C) The habitats are limited to the soil and water environment. 
D) The habitats are limited mostly to water sources. 
A) The habitats are limited to the upper respiratory tract of various mammals. 
B) The habitats vary from the soil and water environment to the upper respiratory tract of various mammals. 
C) The habitats are limited to the soil and water environment. 
D) The habitats are limited mostly to water sources.

Question 7

Transmission of Vibrio spp.to humans is by

Accepted Answer

A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. 
A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism.

Question 8

Aeromonas spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose- utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose- utilizing, gram-negative bacilli that do not grow on MacConkey agar.

Question 9

The primary habitat for Chromobacterium violaceum is

Accepted Answer

A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment. 
A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment.

Question 10

The primary habitat for Vibrio spp is

Accepted Answer

A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment. 
A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment.

Question 11

The primary habitat for Aeromonas spp.is

Accepted Answer

A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment. 
A) fresh water. 
B) the upper respiratory tract of various mammals. 
C) brackish or marine water. 
D) the soil and water environment.

Question 12

Transmission of and Chromobacterium violaceum to humans is by

Accepted Answer

A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism. 
A) exposure of disrupted skin and mucosal surfaces to contaminated animal hides. 
B) ingestion of contaminated seafood or water. 
C) inhalation of contaminated air. 
D) close contact with carriers of the organism.

Question 13

Aeromonas, Vibrio, and Plesiomonas are all

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar.

Question 14

The selective medium thiosulfate citrate bile salts sucrose (TCBS) agar is especially formulated for isolating what pathogen from stool cultures?

Accepted Answer

A) Vibrio 
B) Salmonella 
C) Shigella 
D) Plesiomonas 
A) Vibrio 
B) Salmonella 
C) Shigella 
D) Plesiomonas

Question 15

Stool specimens suspected of containing which enteric pathogen should be collected and transported only in Cary-Blair medium because buffered glycerol saline is toxic for this bacterium?

Accepted Answer

A) Vibrio 
B) Salmonella 
C) Shigella 
D) Plesiomonas 
A) Vibrio 
B) Salmonella 
C) Shigella 
D) Plesiomonas

Question 16

Vibrio spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar.

Question 17

Plesiomonas spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar.

Exam 25: Vibrio, Aeromonas, Plesiomonas Shigelloides, and Chromobacterium Violaceum

Transmission of Aeromonas spp.to humans is by

Transmission of Plesiomonas shigelloides to humans is by

Profuse watery diarrhea ("rice water stools"), leading to dramatic fluid loss, severe dehydration, and hypotension that frequently leads to death, is the hallmark of infection with which bacterial species?

Profuse watery diarrhea ("rice water stools"), leading to dramatic fluid loss, severe dehydration, and hypotension that frequently leads to death, is the hallmark of which toxin activity?

The primary habitat for Plesiomonas shigelloides and Chromobacterium violaceum is

Which statement best describes the habitats of Vibrio spp., Aeromonas spp., Plesiomonas shigelloides, and Chromobacterium violaceum?

Transmission of Vibrio spp.to humans is by

Aeromonas spp.can be described as

The primary habitat for Chromobacterium violaceum is

The primary habitat for Vibrio spp is

The primary habitat for Aeromonas spp.is

Transmission of and Chromobacterium violaceum to humans is by

Aeromonas, Vibrio, and Plesiomonas are all

The selective medium thiosulfate citrate bile salts sucrose (TCBS) agar is especially formulated for isolating what pathogen from stool cultures?

Stool specimens suspected of containing which enteric pathogen should be collected and transported only in Cary-Blair medium because buffered glycerol saline is toxic for this bacterium?

Vibrio spp.can be described as

Plesiomonas spp.can be described as

Microbial Taxonomy

Bacterial Genetics Metabolism and Structure

Host-Microorganism Interactions

Laboratory Safety

Specimen Management

Role of Microscopy

Traditional Cultivation and Identification

Nucleic Acid-Based Analytic Methods for Microbial Identification and Characterization

Immunochemical Methods Used for Organism Detection

Serologic Diagnosis of Infectious Diseases

Principles of Antimicrobial Action Resistance

Laboratory Methods and Strategies for Antimicrobial Susceptibility Testing

Staphylococcus, Micrococcus, and Similar Organisms

Streptococcus, Enterococcus, and Similar Organisms

Bacillus and Similar Organisms

Listeria, Corynebacterium, and Similar Organisms

Erysipelothirix, Lactobacillus, and Similar Organisms

Nocardia, Streptomyces, Rhodococcus, Oerskovia, and Similar Organisms

Enterobacteriaceae

Acinetobacter, Stenotrophomonas, and Other Organisms

Pseudomonas, Burkholderia, and Similar Organisms

Achromobacter, Rhizobium, Ochrobactrum, and Similar Organisms

Chryseobacterium, Sphingobacterium, and Similar Organisms

Alcaligenes, Bordetella Nonpertussis, Comamonas, and Similar Organisms

Sphingomonas Paucimobilis and Similar Organisms

Moraxella

Eikenella Corrodens and Similar Organisms

Pasteurella and Similar Organisms

Actinobacillus, Kingella, Cardiobacterium, Capnocytophaga, and Similar Organisms

Haemophilus

Bartonella and Afipia

Campylobacter, Arcobacter, and Helicobacter

Legionella

Brucella

Bordetella Pertussis and Bordetella Parapertussis

Francisella

Streptobacillus Moniliformis and Spirillum Minus

Neisseria and Moraxella Catarrhalis

Overview and General Considerations

Laboratory Considerations

Mycobacteria

Obligate Intracellular and Nonculturable Bacterial Agents

Cell Wall-Deficient Bacteria: Mycoplasma and Ureaplasma

The Spirochetes

Laboratory Methods for Diagnosis of Parasitic Infections

Laboratory Methods in Basic Mycology

Laboratory Methods in Basic Virology

Bloodstream Infections

Infections of the Lower Respiratory Tract

Upper Respiratory Tract Infections and Other Infections of the Oral Cavity and Neck

Meningitis and Other Infections of the Central Nervous Systems

Infections of the Eyes, Ears, and Sinuses

Infections of the Urinary Tract

Genital Tract Infections

Gastrointestinal Tract Infections

Skin, Soft Tissue, and Wound Infections

Normally Sterile Body Fluids, Bone and Bone Marrow, and Solid Tissues

Laboratory Physical Design, Management, and Organization

Quality in the Clinical Microbiology Laboratory

Infection Control

Sentinel Laboratory Response to Bioterrorism New

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