Question

Match the following diseases with their causative agents:

1. Common cold    A. Bacteria
2. Typhoid    B. Virus
3. Malaria    C. Protozoa

• A. \(1-B,\,2-A,\,3-C\)
• B. \(1-A,\,2-B,\,3-C\)
• C. \(1-C,\,2-A,\,3-B\)
• D. \(1-B,\,2-C,\,3-A\)

Hint:

Remember common disease-causing agents: Virus → Common cold, Dengue, AIDS. Bacteria → Typhoid, Cholera, Tuberculosis. Protozoa → Malaria, Amoebiasis.

Answer 1

The Correct Option is A

Concept: Different infectious diseases are caused by different types of pathogens such as bacteria, viruses, and protozoa. Identifying the causative agent helps in proper diagnosis and treatment.

Step 1: Common cold. Common cold is caused by viruses, mainly the Rhinovirus. \[ \text{Common Cold} \rightarrow \text{Virus (B)} \]

Step 2: Typhoid. Typhoid fever is caused by the bacterium Salmonella typhi. \[ \text{Typhoid} \rightarrow \text{Bacteria (A)} \]

Step 3: Malaria. Malaria is caused by the protozoan parasite Plasmodium and transmitted by the female Anopheles mosquito. \[ \text{Malaria} \rightarrow \text{Protozoa (C)} \]

Step 4: Write the correct matching. \[ 1-B, \quad 2-A, \quad 3-C \]