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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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 13
Historical journals have described gummas on patients. What disease most likely caused these lesions?
a. Ornithosis
b. Syphilis
c. Trachoma
d. Pneumonia
Verified step by step guidance1
Understand the term 'gummas': Gummas are soft, tumor-like growths of inflamed tissue that typically occur in the tertiary stage of a specific infectious disease.
Recall which diseases are associated with gummas: Gummas are characteristic lesions found in the late stage of syphilis, caused by the bacterium Treponema pallidum.
Review the options given: Ornithosis is a respiratory disease caused by Chlamydia psittaci; Trachoma is a chronic eye infection caused by Chlamydia trachomatis; Pneumonia is an infection of the lungs caused by various pathogens.
Match the disease to the lesion: Since gummas are specifically linked to syphilis, the disease most likely causing these lesions is syphilis.
Conclude that the correct answer is the disease known for gummas, which is option b. Syphilis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Gummas
Gummas are soft, tumor-like growths of inflamed tissue that occur in the tertiary stage of syphilis. They represent a chronic granulomatous inflammation caused by the body's immune response to the Treponema pallidum bacterium.
Syphilis
Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum. It progresses through primary, secondary, and tertiary stages, with gummas being characteristic lesions of the late tertiary stage.
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Understanding the clinical features and causative agents of diseases like ornithosis, trachoma, and pneumonia helps differentiate them from syphilis. Unlike syphilis, these diseases do not typically produce gummas, aiding in accurate diagnosis.
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Related Practice
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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