The following points highlight the three major disorders caused due to filarial disease. The disorders are: 1. Elephantiasis 2. Hydrocele 3. Chyluria. Disorder # 1. Elephantiasis: The condition is due to hyperplasia of skin and connective tissue, specially involving scrotum, legs and arms. Elephantiasis is the result in many cases of filariasis where in profuse development of skin occurs on [...]
In the life history of mosquito there are four stages namely—egg, larva, pupa and imago or adult. (a) Egg: After sexual union the female mosquito lays about 200-400 fertilised eggs in shallow stagnant water. The eggs of Anopheles and Aedes float separately in the water, but the eggs of Culex remain together and float as a single unit. The individual [...]
The following points highlight the six major diseases caused by mosquitoes. The diseases are: 1. Malaria 2. Filariasis or Elephantiasis 3. Encephalities 4. Dermatobia 5. Dengue 6. Dengue Haemorrhagic Fever. Disease # 1. Malaria: Malarial fever is a serious disease of man which is created by protozoan endoparasite known as Plasmodium. The malarial disease in man is caused by the [...]