https://www.dailypioneer.com/2021/top-stories/samples-of-dead-cranes-in-delhi-zoo-test-negative-for-bid-flu--officials.html - All 12 samples of dead cranes in the Delhi zoo have tested negative for bird flu, authorities said on Friday, a week after the first case of avian influenza was detected in its premises. “Four cranes were found dead in the Delhi zoo a few days ago. Twelve samples were collected on Monday and sent to the National Institute of High-Security Animal Diseases (NIHSAD) of Indian Council of Agricultural Research for testing, Bhopal,” Dr. Rakesh Singh, the director of the animal husbandry unit of the Delhi government, said.