Tamil Nadu on High Alert as H5N1 Bird Flu Hits Chennai Crows

Tamil Nadu has been placed on high alert after a renewed outbreak of avian influenza, commonly known as bird flu, was detected among wild birds in and around Chennai. Authorities confirmed that hundreds of crows found dead across several neighborhoods tested positive for the highly pathogenic H5N1 virus, prompting intensified surveillance and preventive measures to contain any potential spread to poultry or humans.

Reports indicate that an estimated 1,000 to 1,500 crows have died in areas including Adyar, Velachery, Thiruvanmiyur, and along the East Coast Road. Samples collected from affected locations in Chennai and the nearby Kanchipuram district were tested at the ICAR–National Institute of High Security Animal Diseases (NIHSAD) in Bhopal, which confirmed the presence of the H5N1 strain. The Centre has advised the state to strengthen biosecurity and monitoring efforts.

Avian influenza viruses such as H5N1 are commonly found in wild and migratory birds and can sometimes spill over into domestic poultry. While there have been no confirmed human cases in Tamil Nadu so far, officials say the situation requires vigilance, particularly because similar infections were recently detected in crows in Bihar, indicating wider circulation of the virus.

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In response, the Tamil Nadu Department of Animal Husbandry has stepped up surveillance across the state, especially in districts reporting bird deaths. Measures include disinfection of affected zones, close monitoring of poultry farms, and strict protocols for the safe disposal of dead birds through deep burial or incineration to prevent further transmission.

Health and animal welfare authorities have advised the public to avoid direct contact with sick or dead birds and to report unusual bird deaths immediately. People who handle poultry or live near bird habitats are urged to follow hygiene practices such as regular handwashing and using protective gear when necessary. Handling bird carcasses with bare hands has been strongly discouraged.

Experts have stressed that the overall risk to the general public remains low, but early reporting and precautionary behavior are crucial. The bird flu alert underscores the importance of coordinated action under a “One Health” approach, combining animal, human, and environmental health measures to prevent escalation and ensure public safety.

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