In humans the two different harmful species of Mycobacterium causes

Options

A. Cholera and Diarrhoea
B. Pneumoniae and Diptheria
C. Tetanus and Plague
D. Leprosy and Tuberculosis

Answer

To solve the question, "In humans, the two different harmful species of Mycobacterium causes," we need to identify the diseases caused by the Mycobacterium genus. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the harmful species of Mycobacterium
The two well-known harmful species of Mycobacterium in humans are:
1. Mycobacterium leprae
2. Mycobacterium tuberculosis

### Step 2: Understand the diseases caused by these species
- **Mycobacterium leprae** is responsible for **leprosy**. This disease primarily affects the skin and peripheral nerves, leading to lesions and potential nerve damage.
- **Mycobacterium tuberculosis** is responsible for **tuberculosis (TB)**. This disease mainly affects the lungs but can also impact other parts of the body. TB is characterized by symptoms such as a persistent cough, fever, and weight loss.

### Step 3: Eliminate incorrect options
The question provides several options, including:
- Cholera (caused by Vibrio cholerae)
- Diarrhea (various causes, not Mycobacterium)
- Pneumonia (caused by various pathogens, not specifically Mycobacterium)
- Diphtheria (caused by Corynebacterium diphtheriae)
- Tetanus (caused by Clostridium tetani)
- Plague (caused by Yersinia pestis)

None of these diseases are caused by Mycobacterium, confirming that they can be eliminated from consideration.

### Step 4: Confirm the correct answer
The only two diseases caused by the harmful species of Mycobacterium are leprosy and tuberculosis. Therefore, the correct answer to the question is:
- **Leprosy (Mycobacterium leprae)**
- **Tuberculosis (Mycobacterium tuberculosis)**

### Final Answer:
The two different harmful species of Mycobacterium that cause diseases in humans are:
- **Leprosy (Mycobacterium leprae)**
- **Tuberculosis (Mycobacterium tuberculosis)**

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