Question

Match the following:
(P) Tuberculosis     (1) Bacterial
(Q) Diphtheria       (2) Viral
(R) Yellow fever     (3) Toxoids
(S) Malaria             (4) Protozoal

• A. $ \text{P-1, Q-3, R-2, S-4} $
• B. $ \text{P-3, Q-1, R-4, S-2} $
• C. $ \text{P-1, Q-2, R-3, S-4} $
• D. $ \text{P-4, Q-1, R-2, S-3} $

Hint:

Memorize disease classifications by pathogen type (bacterial, viral, protozoal, etc.)—commonly asked in GPAT exams.

Answer 1

The Correct Option is A

(P) Tuberculosis — (1) Bacterial: Caused by \(\textit{Mycobacterium tuberculosis}\), it is a chronic bacterial infection affecting lungs and other organs.

(Q) Diphtheria — (3) Toxoids: Caused by \(\textit{Corynebacterium diphtheriae}\). Vaccination involves toxoid (inactivated toxin) used in DPT vaccine.

(R) Yellow fever — (2) Viral: Caused by Flavivirus, transmitted by mosquitoes (Aedes aegypti). It is a viral hemorrhagic disease.

(S) Malaria — (4) Protozoal: Caused by Plasmodium spp. (like P. falciparum), transmitted by Anopheles mosquitoes. It is a protozoal infection.

Answer 2

This question pairs four diseases, Tuberculosis, Diphtheria, Yellow fever, and Malaria, with four causative categories, Bacterial, Viral, Toxoids, and Protozoal. Instead of matching disease by disease, let's check each full combination given as an option and see which one is internally consistent.

1. P-1, Q-3, R-2, S-4: This reads as Tuberculosis-Bacterial, Diphtheria-Toxoids, Yellow fever-Viral, Malaria-Protozoal. Tuberculosis is caused by the bacterium Mycobacterium tuberculosis, so Bacterial fits. Diphtheria toxin is neutralized using a toxoid vaccine, so pairing Diphtheria with Toxoids fits the immunization angle the question is testing. Yellow fever is caused by a flavivirus, so Viral fits. Malaria is caused by Plasmodium species, a protozoan, so Protozoal fits. Every pair in this combination checks out.
2. P-3, Q-1, R-4, S-2: This reads as Tuberculosis-Toxoids, Diphtheria-Bacterial, Yellow fever-Protozoal, Malaria-Viral. Tuberculosis has no toxoid vaccine, since BCG is a live attenuated bacterial vaccine, not a toxoid. Yellow fever is caused by a virus, not a protozoan, and Malaria is caused by a protozoan, not a virus. Three of the four pairs are wrong here.
3. P-1, Q-2, R-3, S-4: This reads as Tuberculosis-Bacterial, Diphtheria-Viral, Yellow fever-Toxoids, Malaria-Protozoal. Tuberculosis and Malaria are correctly placed, but Diphtheria is caused by the bacterium Corynebacterium diphtheriae, not a virus, and there is no such thing as a toxoid disease category for yellow fever, since toxoid describes a vaccine type, not a cause of the fever itself.
4. P-4, Q-1, R-2, S-3: This reads as Tuberculosis-Protozoal, Diphtheria-Bacterial, Yellow fever-Viral, Malaria-Toxoids. Diphtheria and Yellow fever are correctly placed, but Tuberculosis is bacterial, not protozoal, and Malaria is protozoal, not a toxoid-related disease.

Only the first combination places every disease against its correct category without contradiction.

Therefore, the correct answer is P-1, Q-3, R-2, S-4.