Textbook Question
Treatment of chlamydial infections involves ____________.
a. Erythromycin cream
b. Doxycycline creams
c. Surgical correction of eyelid deformities
d. All of the above
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Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 21, Problem 9
Which of the following is not true of cholera?
a. The causative agent lives naturally in marine water.
b. There is an effective vaccine for cholera.
c. Strain 01 El Tor has been responsible for several pandemics.
d. Rice-water stool is a symptom.
Verified step by step guidance1
Step 1: Understand the nature of cholera by reviewing its causative agent, Vibrio cholerae, which is known to naturally inhabit marine and estuarine environments. This supports option (a) as true.
Step 2: Examine the availability and effectiveness of vaccines for cholera. There are oral cholera vaccines that provide protection, so option (b) stating there is an effective vaccine is true.
Step 3: Review the epidemiology of cholera, particularly the role of the Vibrio cholerae O1 El Tor biotype, which has caused multiple pandemics, confirming option (c) as true.
Step 4: Consider the clinical symptoms of cholera, especially the characteristic 'rice-water stool,' which is a hallmark symptom, making option (d) true.
Step 5: Since all options (a), (b), (c), and (d) are true statements about cholera, identify which statement is not true by carefully re-evaluating the wording or context of each option to find any inaccuracies.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Vibrio cholerae Ecology
Vibrio cholerae, the bacterium causing cholera, naturally inhabits aquatic environments, especially brackish and marine waters. It associates with plankton and shellfish, which helps its persistence and transmission in nature.
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Cholera Vaccination
Effective vaccines against cholera exist and are used to prevent outbreaks, especially in endemic areas. These oral vaccines provide varying degrees of protection but are not 100% effective, and vaccination is part of a broader control strategy.
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Cholera Symptoms and Strains
Cholera is characterized by severe watery diarrhea, often described as 'rice-water stool.' The El Tor biotype of strain O1 has caused multiple pandemics due to its increased environmental survival and transmission compared to classical strains.
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Related Practice
Textbook Question
Which of the following organisms is transmitted via sexual contact?
a. Treponema pallidum endemicum
b. Treponema pallidum pertenue
c. Treponema pallidum pallidum
d. Treponema carateum
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Textbook Question
The most common cause of bacterial gastroenteritis in the United States is __________.
a. Vibrio parahaemolyticus
b. Campylobacter jejuni
c. Helicobacter pylori
d. Vibrio cholerae
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Textbook Question
Which of the following diseases would be least likely in rural areas of the United States?
a. Epidemic typhus
b. Rocky Mountain spotted fever
c. Murine typhus
d. Lymphogranuloma venereum
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Textbook Question
Two weeks after a backpacking trip in Tennessee, a hiker experienced flulike symptoms and noticed a red rash on his thigh. What is the likely cause of his illness?
a. Treponema pallidum pertenue
b. Borrelia burgdorferi
c. Borrelia recurrentis
d. Leptospira interrogans
Textbook Question
During which stage of syphilis is penicillin ineffective?
a. Primary syphilis
b. Secondary syphilis
c. Tertiary syphilis
d. All of the above
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