Lucknow/Gorakhpur/Kanpur, May 15 -- The Central Zoo Authority (CZA) has formed a five-member team to investigate the death of a tigress, whose post-mortem confirmed bird flu (H5N1), and study the impact of avian influenza at the Gorakhpur zoo. The tigress, Shakti, died at the Shaheed Ashfaq Ullah Khan Zoological Park in Gorakhpur on May 7. Lab reports from IVRI (Indian Veterinary Research Institute), Bareilly and National Institute of High Security Animal Disease, Bhopal, on May 12 confirmed a bird flu (H5) strain in the sample. Thereafter, all zoos across Uttar Pradesh and the Etawah lion safari were closed for seven days till May 20. Teams from Lucknow and elsewhere have already visited the Gorakhpur zoo. The CZA has formed a 5-member team of veterinary doctors and pathologists, confirmed Anuradha Vemuri, principal chief conservator of forest, wildlife, Uttar Pradesh (PCCF-W, UP).P3...