Question

Which one of the following diseases is not transmitted by a mosquito?
(A) Brain fever
(B) Malaria
(C) Typhoid
(D) Dengue

Answer 1

Hint: Mosquito is the small insect that bite the host in which the saliva of these organisms enter into the host body. This may cause itching rashes. Sometimes the mosquito may ingest the harmful pathogens and when they bite the host, these pathogens enter into the host body via saliva of the mosquito causing diseases.

Complete answer:
(A) Brain fever:
It is a viral disease. This virus may cause encephalitis, meningitis and cerebritis. The mosquito, Culex tritaeniorhynchus acts as the transmitter. It bites the infected person and after that when it bites the normal healthy person, these pathogens enter into the host body.

(B) Malaria:
It is caused by the plasmodium and it is transmitted by the female anopheles mosquito. It is characterized by the alternate high and the low body temperature.

(C) Typhoid:
It is caused by the bacteria salmonella typhi. It is transmitted through the contamination in the food and the water. The symptoms of the typhoid are the high fever, headache, stomach pain, frequent vomiting, loose stools etc.

 (D) Dengue:
This is also a viral disease caused by the dengue. It is transmitted through the mosquito by biting from the infected person to the healthy person. Among the given options, Typhoid is the only disease that is not transmitted by the mosquito but it is transmitted by the contaminated food and the water.

Hence the correct answer is OPTION(C)

Note: The symptoms of the typhoid are fever low at the starting and increases daily, muscle aches, dry cough, abdominal pain, rash, swollen abdomen, sweating, weakness, fatigue, headache etc. It can be avoided by maintaining good sanitary condition and healthy hygienic food.