Question

The following diseases may or may not be transmitted by some vectors
i) Pneumonia
ii) AIDS
iii) Yellow fever
iv) Dengue fever
v) Malaria
vi) Elephantiasis
The ones associated with mosquitoes are
A) i, iii, iv, vi
B) iii, iv, v, vi
C) ii, iii, iv, v, vi
D) All of the above

Answer 1

Vector borne diseases are those that are spread from one human to another by means of certain organisms that are termed as vectors. These organisms mostly include mosquitoes, ticks and fleas.

Complete answer:
The different diseases given in the question are caused due to different conditions and may or may not involve vectors. The first one that is pneumonia is a lung disease that is most commonly caused by the bacteria Streptococcus pneumoniae. It is characterized by inflammation of the alveoli and it being filled with pus or fluid making it difficult to breath. The second one AIDS is caused by the Human Immunodeficiency Virus ( HIV). It is a life threatening disease as it causes damage to the body’s immune system slowly making it non-functional. As a result of which the infected person can no longer fight other diseases or infections. Yellow fever is caused by a virus that is spread through a mosquito Aedes aegypti. It is characterized by fever along with jaundice. Dengue fever is also a viral disease that is spread through Aedes mosquitoes. Symptoms include fever, body rash, headache and muscle and joint pain. Malaria is caused by a parasite, Plasmodium that is spread through Anopheles mosquito. Symptoms include fever, tiredness and headache. Elephantiasis is also a parasitic disease that is spread through mosquitoes. It is characterized by swelling of a body art due to accumulation of lymph as the parasite blocks the lymphatic vessels.

Hence the correct answer is (B) iii, iv, v, vi.

Note: Thus we can see mosquitoes are a potent vector that can cause the spread of a variety diseases from one human to another. So individuals living in mosquito infested areas should take proper care to eliminate mosquitoes.