Indigenous vaccine for fish

(GS PAPER-3, ECOLOGY
SOURCE- THE HINDU)

Context-

The Central Institute of Brackish Aquaculture which is located in Chennai has recently developed an indigenous vaccine for Viral Nervous Necrosis. The name given to the vaccine is Nodavac-R

What is Viral Nervous Necrosis-

  • The cause of the disease is Betanodavirus which mostly affects teleost fish. More than forty species of fish are affected by this virus and most of them are marine species.
  • This virus transmits through passive diffusion and contact.
  • The disease is mostly occurring in juveniles or larvae. However, it also affects adults.

Viral Nervous Necrosis in India-

The disease has been a serious concern affecting freshwater, marine and brackish water fishes largely in India. It results in 100% mortality in fishes that are in juvenile and larval stages.

Remedy-

The best approach to control the disease in India is to vaccinate adult fish and also their fingerlings. The Nodavac-R is safe for all species that are susceptible to Viral Nervous Necrosis.

Download Daily Current Affairs of 29th April 2021