**Core Concept**
Neisseria gonorrhea is a sexually transmitted bacterium that causes gonorrhea, a common infection affecting the mucous membranes. It is a Gram-negative, aerobic diplococcus that primarily infects the urethra, cervix, pharynx, and rectum.
**Why the Correct Answer is Right**
Neisseria gonorrhea is known for its complex cell wall composition, which includes peptidoglycan, lipooligosaccharides (LOS), and porins. The bacterium's resistance to antibiotics is largely due to its ability to modify its LOS structure, making it resistant to complement-mediated killing. Additionally, Neisseria gonorrhea can cause disseminated infections, including septic arthritis, meningitis, and endocarditis, particularly in immunocompromised individuals.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Neisseria gonorrhea is actually a Gram-negative bacterium, not Gram-positive.
**Option B:** This option is incorrect because Neisseria gonorrhea is not typically associated with the formation of abscesses, unlike Staphylococcus aureus.
**Option C:** This option is incorrect because Neisseria gonorrhea is not a zoonotic pathogen, meaning it does not typically infect animals.
**Clinical Pearl / High-Yield Fact**
It's essential to note that Neisseria gonorrhea has developed resistance to multiple antibiotics, including penicillin, tetracycline, and sulfonamides. The Centers for Disease Control and Prevention (CDC) recommend dual therapy with ceftriaxone and azithromycin for the treatment of gonorrhea.
**Correct Answer:** A.
Free Medical MCQs Β· NEET PG Β· USMLE Β· AIIMS
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