Which one of the following diseases is not transmitted by a mosquito?
(a) Brain fever
(b) Malaria
(c) Typhoid
(d) Dengue
Answer: C
Solution: Mosquitoes are the infecting agents that carry infections from sick people to a different host and are also termed as Vectors as they act as intermediaries. The female mosquitos require high nutrition to lay eggs that are acquired in the form of warm blood from animals and humans.
Brain Fever is also known as Encephalitis, which is transmitted by mosquitoes of Culex species.
Anopheles mosquitoes transmit malaria.
Aedes Mosquitoes transmit dengue fever.
Typhoid fever is caused by drinking contaminated water or eating contaminated food and can also be caused by the bacteria-contaminated toilet. The bacteria Salmonella typhi causes typhoid fever.