Identify which statement below correctly describes a difference between chlamydia and gonorrhea infections.

• A. Gonorrhea causes pus-filled discharge from the penis; chlamydia does not.
• B. Chlamydia is usually asymptomatic in women; gonorrhea is usually symptomatic in women.
• C. Gonorrhea has widespread resistance to antibiotics; chlamydia does not.
• D. C. trachomatis can reproduce both intracellularly and extracellularly; N. gonorrhoeae can only replicate inside host cells.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the causative agents and their characteristics. Chlamydia is caused by the bacterium Chlamydia trachomatis, and gonorrhea is caused by Neisseria gonorrhoeae. Both are sexually transmitted infections but have different biological and clinical features.
2. Step 2: Analyze the symptom profiles. Chlamydia infections are often asymptomatic, especially in women, meaning many infected individuals do not show symptoms. Gonorrhea tends to cause more noticeable symptoms, such as pus-filled discharge, but this can vary.
3. Step 3: Consider antibiotic resistance patterns. Gonorrhea has developed widespread resistance to many antibiotics, making treatment more challenging. In contrast, chlamydia generally remains susceptible to standard antibiotic therapies.
4. Step 4: Examine the replication mechanisms. Chlamydia trachomatis is an obligate intracellular pathogen, meaning it must reproduce inside host cells, but it can also exist extracellularly during transmission. Neisseria gonorrhoeae primarily replicates extracellularly on mucosal surfaces and is not an obligate intracellular pathogen.
5. Step 5: Compare the statements given in the problem to these facts to identify which correctly describes a difference between the two infections, focusing on symptoms, antibiotic resistance, and replication behavior.