Question

Assertion (A): Streptococcus pneumoniae and \textit{Haemophilus influenzae} are responsible for causing infectious disease in human beings. Reason (R): A healthy person acquires the infection by inhaling the aerosols released by an infected person.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
• C. (A) is true, but (R) is false.
• D. (A) is false, but (R) is true.

Hint:

Streptococcus pneumoniae and Haemophilus influenzae are spread through respiratory droplets, making airborne transmission a key factor in the spread of these infections.

Answer 1

The Correct Option is A

Step 1: Analyzing the assertion:
- \textit{Streptococcus pneumoniae} and \textit{Haemophilus influenzae} are well-known pathogens that can cause respiratory infections, such as pneumonia, in humans.
- These bacteria are indeed responsible for a variety of infectious diseases in humans, including pneumonia and other respiratory tract infections.
Step 2: Analyzing the reason:
- It is a well-established fact that these bacteria are transmitted through airborne droplets (aerosols) released when an infected person coughs, sneezes, or talks.
- This method of transmission is a common means by which healthy individuals acquire these infections.
Step 3: Conclusion:
Both Assertion (A) and Reason (R) are true, and Reason (R) correctly explains Assertion (A). Therefore, the correct answer is option (A).