Question

Which of the following causes typhoid fever?

• A. Salmonella typhi
• B. Mosquito
• C. Plasmodium
• D. Nicotine

Hint:

Prevent typhoid fever by ensuring clean drinking water, proper sanitation, and avoiding contaminated food.

Answer 1

The Correct Option is A

Step 1: Causative organism of typhoid fever

Typhoid fever is caused by the bacterium Salmonella typhi. This bacterium is transmitted through contaminated food and water.

Step 2: Symptoms of typhoid fever

Symptoms include:

• High fever
• Weakness
• Abdominal pain
• Headaches
• Constipation or diarrhea

Step 3: Elimination of incorrect options

(B) Incorrect: Mosquitoes transmit diseases like malaria and dengue, not typhoid.

(C) Incorrect: Plasmodium is a parasite responsible for malaria.

(D) Incorrect: Nicotine is a chemical compound and not a causative agent of infectious diseases.