In Thailand, a severe disease outbreak has resulted in the death of at least 72 captive tigers in the northern Chiang Mai province. The majority of these fatalities are attributed to two privately operated wildlife parks, Tiger Kingdom Mae Taeng and Tiger Kingdom Mae Rim, where both parks allowed tourists to closely interact with the animals. Between February 8 and February 19, 2026, a total of 51 tigers died at the Mae Taeng location, while 21 succumbed at Mae Rim, according to reports from officials. Preliminary tests by veterinary teams from the Chiang Mai provincial livestock office confirmed that the tigers were infected with feline parvovirus, a highly contagious virus that attacks the digestive system and significantly weakens the immune response in felines, leading to severe health issues such as vomiting, bloody diarrhea, and lethargy. Additional findings reported the presence of canine distemper virus (CDV) and Mycoplasma bacteria in the autopsies of the deceased animals. However, tests ruled out the presence of influenza A, known to cause bird flu. The emergence of these diseases in the captive tiger population raises concerns regarding their overall health and susceptibility to infections, particularly in light of local wildlife management practices. Inbreeding among the captive tiger population may have exacerbated their weakened immune systems, making them more vulnerable to infections and complicating treatment efforts. Unlike domestic pets, tigers living in such parks do not receive immediate medical attention when they show signs of illness due to their limited interaction with humans. In response to the outbreak, authorities have pursued stringent measures to contain the spread of the disease. They temporarily closed Tiger Kingdom Mae Rim for 14 days, restricted access to both facilities, and initiated disinfection efforts for the enclosures and equipment. All surviving tigers have been relocated to quarantine and care centers in Mae Taeng district to facilitate close monitoring. Plans are underway to vaccinate healthy animals to prevent further transmission of the diseases. PETA Asia has criticized these parks, calling attention to the suffering and confinement of the tigers, asserting that the presence of tourists contributes to the parks' profitability and the likelihood of such tragic events occurring. Thailand has a history of severe disease outbreaks among its captive big cat population, highlighting an ongoing issue with the health and welfare of animals in captivity.