Question

Match the following coloumns:
$\begin{array}{cc}\text{Diseases}& \text{Mode of Transmission}\\ \text{a. Dengue}& \text{i. Water borne}\\ \text{b.Typhoid}& \text{ii. Air borne}\\ \text{c. Smallpox}& \text{iii. Vector borne}\end{array}$

• A. a - i; b - ii; c - iii
• B. a - iii; b - ii; c - i
• C. a - i; b - iii; c - ii
• D. a - iii; b - i; c - ii

Answer 1

The correct option is D a - iii; b - i; c - ii

• Disease causing microorganisms are called pathogens.
• And modes of transmission of these pathogens can be the air, water or vector etc.
• Female Aedes mosquito acts as carrier of dengue virus. So dengue is a vector borne disease.
• Typhoid is a bacterial disease, which spreads by the means of contaminated water so it is a water borne disease.
• Smallpox is a viral disease transmitted by air.