Which one of the following diseases is a communicable?

Options

A. Rickets
B. Malaria
C. Diabetes
D. Scurvy

Answer

To determine which of the following diseases is communicable, we need to analyze each option provided in the question.

### Step 1: Understand the concept of communicable diseases
Communicable diseases, also known as transmissible diseases, are illnesses that can be spread from one person to another through pathogens such as bacteria, viruses, or parasites.

### Step 2: Evaluate the options
1. **Rickets**: This disease is caused by a deficiency of vitamin D, leading to weakened bones. It is not caused by a pathogen and cannot be transmitted from one person to another. Therefore, it is not a communicable disease.

2. **Malaria**: This disease is caused by the Plasmodium parasite, which is transmitted through the bite of infected mosquitoes. Since it can be spread from one person to another through a vector (the mosquito), malaria is indeed a communicable disease.

3. **Diabetes**: This is a metabolic disorder characterized by high blood sugar levels. It is not caused by a pathogen and cannot be transmitted between individuals. Thus, it is not a communicable disease.

4. **Scurvy**: This condition is caused by a deficiency of vitamin C, leading to symptoms like bleeding gums. Similar to rickets, it is not caused by a pathogen and cannot be transmitted, making it non-communicable.

### Step 3: Conclusion
Among the options provided, **malaria** is the only communicable disease.

### Final Answer
**Malaria** is the communicable disease from the options given.

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