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Published on: November 5, 2019
Meningococcal urethritis
1University Health Service, Brandeis University, Waltham, Massachusetts 02254-9110.
Abstract:
Two to four percent of the population carry meningococcus in the nasopharynx. Pharyngeal infections may be the entry point for blood-borne metastatic lesions throughout the body. Primary infections in other tissues are rare, and proof of transmission from a known carrier to a specific patient is uncommon. We report a primary infection of the urethra with the meningococcus in a heterosexual male contracted during an act of fellatio.
Insights
Meningococcus bacteria, commonly found in the throat, can cause rare primary infections elsewhere. This case details a heterosexual male with a urethral infection from meningococcus acquired through oral sex.
Area of Science:
- Microbiology
- Infectious Diseases
- Urology
Background:
- Neisseria meningitidis (meningococcus) is a bacterium carried asymptomatically in the nasopharynx of 2-4% of the population.
- Pharyngeal carriage can serve as a reservoir for invasive meningococcal disease.
- Primary infections outside the pharynx are uncommon, with documented transmission chains being rare.
Observation:
- A case of primary urethral infection caused by Neisseria meningitidis is reported.
- The infection occurred in a heterosexual male.
- Transmission was linked to an act of fellatio.
Findings:
- This report highlights an unusual route of transmission for meningococcus.
- Demonstrates that the urethra can be a site for primary meningococcal infection.
- Suggests sexual contact as a potential, albeit uncommon, mode of transmission.
Implications:
- Expands understanding of Neisseria meningitidis transmission dynamics.
- Highlights the need to consider sexual history in cases of urethritis, particularly in males.
- May inform public health strategies regarding meningococcal disease prevention and control.
Related Concept Videos
Bacterial Meningitis
Streptococcal Pharyngitis
Viral Meningitis
Cryptococcal Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

