Thai health authorities have confirmed that the sudden deaths of 72 tigers at two northern Thailand animal parks resulted from canine distemper virus (CDV) infection, explicitly ruling out any connection to avian influenza. The fatalities occurred within a concentrated 10-day period between February 8-18 at Tiger Kingdom facilities in Chiang Mai province’s Mae Taeng and Mae Rim districts.
Public Health Minister Pattana Promphat addressed concerns at a Tuesday press conference, emphasizing that the CDV pathogen presents no known transmission risk to humans. ‘There has not been an animal-to-human infection case,’ Minister Promphat stated, while acknowledging ongoing health monitoring of individuals with recent animal contact.
Veterinary investigations revealed the presence of CDV genetic material and secondary bacterial infections in necropsy results, with no detected traces of avian influenza viruses. Officials noted that confined big cats face heightened vulnerability to such infections due to stress factors and genetic limitations from inbreeding practices.
Despite official reassurances, participating veterinarian Visit Arsaithamkul raised concerns about undetermined infection origins. Through social media channels, Dr. Arsaithamkul suggested possible contamination through shared food sources between the geographically proximate facilities.
All deceased tigers underwent controlled cremation and burial procedures following thorough disinfection protocols to prevent further disease spread. Both affected parks remain temporarily closed as investigations continue.
Health authorities maintain nationwide vigilance against potential avian influenza threats, with Disease Control Department Director-General Monthien Khanasawat advising cautious poultry consumption practices following recent regional bird flu cases.