Textbook Question
Most human infections caused by species of Rickettsia ___________.
a. Are acquired from fomites
b. Could be prevented by hand washing
c. Are transmitted via vectors
d. Are sexually transmitted
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21. Principles of Disease
Bacterial Pathogenesis
1:52 minutesProblem 5
Textbook Question
The most commonly reported sexually transmitted disease in the United States is caused ___________.
by the bacterium
a. Mycoplasma genitalium
b. Chlamydia trachomatis
c. Chlamydophila proctitis
d. Ureaplasma urealyticum
Verified step by step guidance1
Step 1: Understand the question is asking for the bacterium responsible for the most commonly reported sexually transmitted disease (STD) in the United States.
Step 2: Recall that among the options, the bacterium Chlamydia trachomatis is well-known for causing chlamydia, which is the most frequently reported bacterial STD in the U.S.
Step 3: Review the other options: Mycoplasma genitalium, Chlamydophila proctitis, and Ureaplasma urealyticum are less commonly reported or less prevalent as causes of STDs compared to Chlamydia trachomatis.
Step 4: Confirm that Chlamydia trachomatis is the correct choice by considering epidemiological data and clinical significance in microbiology related to STDs.
Step 5: Select option b. Chlamydia trachomatis as the bacterium causing the most commonly reported STD in the United States.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Sexually Transmitted Diseases (STDs)
STDs are infections primarily spread through sexual contact. Understanding their epidemiology helps identify the most common pathogens responsible, which is crucial for diagnosis, treatment, and public health interventions.
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Chlamydia trachomatis
Chlamydia trachomatis is a bacterial pathogen and the leading cause of bacterial sexually transmitted infections in the U.S. It often causes asymptomatic infections but can lead to serious reproductive complications if untreated.
Differentiation of Bacterial Pathogens in STDs
Recognizing the differences between bacteria like Mycoplasma genitalium, Chlamydophila species, and Ureaplasma urealyticum is essential for accurate diagnosis and treatment, as they vary in prevalence, symptoms, and antibiotic susceptibility.
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