Textbook Question
Historical journals have described gummas on patients. What disease most likely caused these lesions?
a. Ornithosis
b. Syphilis
c. Trachoma
d. Pneumonia
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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 12
The most common cause of bacterial gastroenteritis in the United States is __________.
a. Vibrio parahaemolyticus
b. Campylobacter jejuni
c. Helicobacter pylori
d. Vibrio cholerae
Verified step by step guidance1
Step 1: Understand the question is asking for the most common bacterial cause of gastroenteritis in the United States, which is an infection of the stomach and intestines causing symptoms like diarrhea and vomiting.
Step 2: Review each option and recall their typical clinical presentations and epidemiology:
- Vibrio parahaemolyticus is associated with seafood-related gastroenteritis but is less common overall.
- Campylobacter jejuni is a leading cause of bacterial gastroenteritis worldwide and is especially common in the U.S., often linked to undercooked poultry.
- Helicobacter pylori primarily causes chronic gastritis and peptic ulcers, not acute gastroenteritis.
- Vibrio cholerae causes cholera, characterized by severe watery diarrhea, but it is rare in the U.S.
Step 3: Based on the epidemiology and clinical features, identify which bacterium is most frequently responsible for bacterial gastroenteritis in the U.S.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Bacterial Gastroenteritis
Bacterial gastroenteritis is an infection of the stomach and intestines caused by bacteria, leading to symptoms like diarrhea, vomiting, and abdominal pain. It is commonly transmitted through contaminated food or water and is a major cause of foodborne illness worldwide.
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Bacterial Transformation
Campylobacter jejuni as a Pathogen
Campylobacter jejuni is a leading bacterial cause of gastroenteritis in the United States. It is typically acquired through undercooked poultry or contaminated water, causing symptoms such as diarrhea, fever, and cramps. It is more common than other listed bacteria in causing intestinal infections.
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Distinguishing Bacterial Species in Gastrointestinal Infections
Different bacteria cause distinct gastrointestinal diseases; for example, Vibrio cholerae causes cholera with severe watery diarrhea, Helicobacter pylori is linked to stomach ulcers, and Vibrio parahaemolyticus causes seafood-related gastroenteritis. Understanding these differences helps identify the most common cause of bacterial gastroenteritis.
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Related Practice
Textbook Question
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.
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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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