Avian Influenza Cases Confirmed in Crows

• Avian Influenza (H5N1): Confirmed in crow samples collected from Adyar, Tamil Nadu. The virus was detected by the ICAR–National Institute of High Security Animal Diseases, Bhopal, on January 21, 2026.

• Date of Communication: The Department of Animal Husbandry and Dairying communicated these findings on January 22, 2026, to Tamil Nadu's Chief Secretary.

• Action Required: Implementation of the ‘One-Health’ approach has been advised to control the virus's spread. This approach integrates multiple sectors and agencies for effective management.

• Biosecurity Measures:

  • Local municipalities must enhance biosecurity protocols.
  • Thorough disinfection in bird mortality areas is mandated.
  • Disposal of dead birds must be done via deep burial.
  • Carcasses should be sent to laboratories for testing under strict biosecurity conditions.

• Surveillance and Reporting:

  • Undue mortality in poultry and other avian species must be reported without delay.
  • Enhanced surveillance is recommended for poultry and ducks in affected areas, particularly in wet bird markets, night shelters of duck farms, and hatcheries.

• Local Health Initiatives:

  • Medical camps have been initiated in Indira Nagar, Adyar, following the bird mortality incidents.
  • Domestic Breeding Checkers (DBC) are conducting door-to-door medical assessments in affected areas.

• Observation from Greater Chennai Corporation: The current trend indicates the avian influenza appears to predominantly affect crows, with a noted decrease in bird deaths compared to January.

This summary encapsulates critical facts and measures being taken in response to the avian influenza outbreak, ensuring a focus on public health and animal disease management strategies.