Authorities in northern Thailand have initiated a formal investigation into a devastating virus outbreak that resulted in the deaths of 72 tigers at a well-known tourist animal park. The fatalities occurred over a span of less than two weeks across two separate facilities located in the northern province of Chiang Mai, which collectively house more than 240 of the big cats.
Outbreak Details and Response
The majority of the tiger deaths were recorded at the privately operated Tiger Kingdom Mae Taeng and Tiger Kingdom Mae Rim parks. These establishments are popular destinations that permit visitors to engage in close interactions with the animals, including opportunities for photographs.
On Monday, officials confirmed that the remains of all 72 deceased tigers from Tiger Kingdom Chiang Mai have been cremated and subsequently buried. This measure was implemented to eliminate any potential risk of the carcasses entering the illegal wildlife trade market.
Logistical Challenges in Disposal
Kritsayam Kongsatree, the director of the Protected Area Regional Office 16, provided details regarding the disposal process. He explained that initial plans for cremation were adjusted due to a limited availability of cremation facilities, leading to a switch to burial methods. Kongsatree emphasised that no tiger skins or teeth were removed for commercial purposes, and each burial site was clearly marked with the individual tiger's identification number for future reference and tracking.
Virus Identification and Potential Causes
Preliminary laboratory tests have identified the presence of the canine distemper virus in the affected tigers. This is a highly contagious pathogen that attacks the respiratory, gastrointestinal, and nervous systems of animals. While commonly associated with dogs, the virus can prove fatal to big cats like tigers.
Authorities have not yet determined the precise origin of the outbreak. Some tissue samples also indicated secondary bacterial infections linked to respiratory illnesses, complicating the clinical picture.
Timeline and Initial Suspicions
The outbreak unfolded between 8 and 19 February, claiming the lives of 51 tigers at the Mae Taeng facility and 21 at the Mae Rim location. Early reports had speculated about possible infections stemming from feline parvovirus or from contaminated raw chicken. Notably, a prior incident in 2004 saw a fatal bird flu outbreak at a tiger facility linked to tainted chicken feed.
Human Safety and Park Operations
Despite the severe impact on the tiger population, authorities confirmed that none of the veterinarians or park staff have contracted the virus. However, as a precautionary measure, health officials have placed all relevant personnel under a 21-day observation period to monitor for any potential symptoms.
The park has been temporarily closed for a two-week period to allow for thorough disinfection and extensive sanitation procedures across the premises.
Challenges in Treating Wildlife
Somchuan Ratanamungklanon, director-general of Thailand's department of livestock development, highlighted the unique difficulties in treating sick tigers compared to domestic pets. "Dogs and cats live closely with humans, allowing for early symptom detection and prompt treatment. Tigers, however, do not share such proximity. By the time abnormalities are noticed, the illness may already be at an advanced stage," he explained to local media.
Underlying Vulnerabilities and Criticism
The department of livestock development also suggested that inbreeding among the captive tiger population may have weakened the animals' immune systems. This genetic factor could have increased their susceptibility to infections and accelerated the disease's spread within the confined environment.
Animal welfare organisations have strongly criticised the conditions at Tiger Kingdom Chiang Mai, pointing to the inherent vulnerabilities of captive wildlife facilities to infectious disease outbreaks.
Call for Tourist Boycott
Groups including the Wildlife Friends Foundation Thailand and Peta Asia argued that close tourist interactions exacerbate health risks for the animals. Peta Asia stated to AFP that "tragedies like this would be far less likely to happen" if visitors consciously "stayed away" from such attractions, advocating for a boycott to pressure for better animal welfare standards.
The investigation continues as authorities work to pinpoint the outbreak's source and implement measures to prevent future occurrences, amid growing scrutiny over the ethics and safety of wildlife tourism practices in Thailand.
