Question

Which vector spreads the yellow fever disease?
A. Musca
B. Anopheles
C. Culex
D. Aedes aegypti

Answer 1

Hint: Vectors can be defined as a carrier of causative microbes for various diseases. They are responsible for spreading vector-borne diseases like yellow fever disease, malaria, etc.

Complete answer:
Option A: Musca domestica is a vector for diseases which can be spread by contaminated water and unhygienic food handlers. It transmits pathogens which can cause typhoid fever.

Option B: Female anopheles is a primary vector for the malaria virus. When an Anopheles mosquito bites a person infected with malaria, the virus is transmitted to the mosquito.

Option C: Yellow fever is a very serious and deadly flu- like disease which is spread by Culex (mosquitoes). The symptoms of this disease are jaundice (accumulation of bile in the body) and high fever. The disease is mostly prevalent in parts of South America and Africa.

Option D: Aedes aegypti is a vector for several viruses like dengue virus, chikungunya virus, zika virus, etc.

Thus, the correct option is C) Culex.

Note: Vector borne diseases can be prevented in the following ways,
- Insect repellents should be applied on skin and clothes.
- Nets must be used while sleeping in the night.
- Water must be prevented from getting collected or stagnant.
- Washed clothes must be dried properly outside.
- Disinfectants must be used to control infections which are caused by the pests.