Question

Which of the following disease is not transmitted by a mosquito?

• A. Dengue
• B. Malaria
• C. Brain fever
• D. Typhoid

Answer 1

The correct option is D

Typhoid

The correct option is D.

Explanation for correct option:

1. Mosquitoes are considered dangerous insects as they act as vectors for many deadly diseases.
2. The mosquitoes carry bacteria, viruses, parasites, etc. which they can transmit easily to humans and animals via their bites.
3. Typhoid is a bacterial disease, which is not transmitted via mosquitoes.
4. The bacteria, which results in typhoid is Salmonella typhi.
5. The disease generally spreads via the consumption of contaminated water or food.
6. If the person consumes or drinks something, which is infested with bacteria, the person might suffer from the disease.
7. The organs affected by the disease are the spleen, liver, and muscles.
8. Typhoid fever is highly contagious and the bacteria Salmonella typhi results in food poisoning.

Explanation of incorrect options:

Option A:

1. Dengue is a viral disease, which is transmitted to humans via the bite of infected mosquitoes.
2. The virus accountable for the disease dengue is the dengue virus.
3. The main vector, which passes the disease is Aedes aegypti mosquitoes.

Option B:

1. Malaria is a life-threatening disease resulting due to parasites plasmodium, which is transmitted to people via the bites of infected female Anopheles mosquitoes.

Option C:

1. Encephalitis is a viral disease a brain fever, which results in inflammation of the brain.
2. It is caused by the Japanese encephalitis virus and is spread by Culex mosquitoes.
3. The disease is generally transmitted from infected animals pigs to humans via the bite of Culex mosquitoes.

Final answer: Typhoid is not transmitted by a mosquito.