Bird flu has been detected at three more places in Alappuzha.
Officials said the disease was confirmed in ducks at Kodambanadi (ward 13) in Thalavady grama panchayat and Kottemala (ward 11) in Thazhakara panchayat and chickens at a poultry farm at Punnakunnam (ward 3) in Champakulam panchayat.
Following the mass bird deaths at these places since last week, the Animal Husbandry Department (AHD) sent samples of the dead birds to the National Institute of High-Security Animal Disease (NIHSAD), Bhopal, for analysis, which tested positive for avian influenza on Thursday.