72 tigers died in 2 Thai zoos over 10 days, but authorities tell humans not to worry

Fortune

by Wasamon Audjarint, The Associated Press

February 25, 2026

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The deaths of 72 tigers in two northern Thailand zoos between February 8-18 have raised alarms, but officials assure the public that the cause is not avian influenza (bird flu). Instead, autopsies revealed the virus responsible was canine distemper (CDV), which primarily affects dogs and felines, and bacterial infections. No human cases or symptoms linked to these deaths have been reported. Authorities are monitoring individuals who came into contact with the tigers but stress that there is no evidence of animal-to-human transmission. The affected zoos, part of the Tiger Kingdom chain in Chiang Mai province, remain closed as investigations continue. CDV, which can spread through bodily fluids and air, was identified as a likely culprit. The virus is particularly dangerous for cats and tigers, especially those in confined environments already stressed by inbreeding and other factors. Veterinarian Visit Arsaithamkul suspects the two parks, located just 30 kilometers apart, may have shared a contaminated food source, potentially contributing to the outbreak. While there is no immediate threat to human health, the incident underscores the risks posed by zoonotic diseases. Thai authorities are on high alert for bird flu, which has resurged in parts of Asia. The Public Health Ministry urged caution among poultry consumers after a bird flu case was reported in an unnamed neighboring country. Thailand’s history with avian influenza is concerning; from 2004 to 2007, the country saw 17 deaths among 25 infected individuals. This situation highlights the economic impact on businesses and tourism. The closure of Tiger Kingdom parks has halted revenue streams for these attractions, which rely heavily on tourist visits. Thailand’s tourism industry, a major contributor to its economy, could face further strain if fears about zoonotic diseases grow. Authorities’ quick response in handling the tiger deaths and implementing safety measures aims to mitigate both public health risks and economic fallout. The incident also raises questions about animal welfare standards in zoos, particularly regarding the stress and vulnerability of tigers in confined spaces. As investigations continue, stakeholders are weighing the costs of improved animal welfare practices against potential financial losses from closures and reduced tourism. This balance will be critical as Thailand seeks to maintain its reputation as a top travel destination while ensuring the health and safety of both animals and humans.

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Originally published on Fortune on 2/25/2026