Staphylococcal infection causes all disease execept:
**Core Concept**
Staphylococcal infections are caused by the bacterium Staphylococcus, which can lead to a variety of diseases ranging from mild skin infections to life-threatening conditions. Staphylococci are gram-positive, facultative anaerobic bacteria that can produce toxins and enzymes to cause disease.
**Why the Correct Answer is Right**
Staphylococcal infections are known to cause diseases such as skin infections (folliculitis, furuncles, and abscesses), respiratory infections (pneumonia, bronchitis), and systemic infections (endocarditis, osteomyelitis). However, one notable exception is the disease caused by the bacterium *Mycobacterium tuberculosis*, which is responsible for tuberculosis (TB). TB is a chronic bacterial infection primarily affecting the lungs, but it can also spread to other parts of the body.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as Staphylococcal infections can cause a range of diseases, including skin infections, respiratory infections, and systemic infections.
* **Option B:** This option is incorrect as Staphylococcal infections are known to cause diseases such as pneumonia and bronchitis, which affect the respiratory system.
* **Option C:** This option is incorrect as Staphylococcal infections can cause systemic diseases such as endocarditis and osteomyelitis, which affect various parts of the body.
**Clinical Pearl / High-Yield Fact**
Staphylococcus aureus is a common cause of skin and soft tissue infections, and it can also cause life-threatening conditions such as sepsis and toxic shock syndrome. It's essential to recognize the symptoms of Staphylococcal infections and initiate appropriate treatment promptly.
**Correct Answer: D. Tuberculosis**