IJCM_219A: A “One Health” Model for Prevention and Control of Anthrax in Koraput, Odisha, India

Abstract

Background: Anthrax, a neglected zoonotic disease caused by Bacillus anthracis, poses a significant threat in Odisha, India, particularly in the tribal district of Koraput, which has reported numerous human cases and deaths but lacks consistent robust surveillance. Objectives: This study aimed to pilot a “One Health” surveillance model in Koraput, involving community health workers, para-veterinarians, and block- level teams in outbreak investigations. Methodology: As part of the “One Health Approach to Anthrax Control in India (OHAI)” project Odisha University of Agriculture and Technology (OUAT), in collaboration with the Departments of Animal Husbandry and Health and Family Welfare, Government of Odisha, initiated prospective laboratory-based anthrax surveillance in three blocks of Koraput. Confirmed cases in animals were identified via microscopic, culture, or PCR testing for Bacillus anthracis. Community awareness programs and rapport-building exercises were conducted with human and veterinary officials at the block and district levels following the detection of outbreaks. Results: Between March and June 2023, five anthrax outbreaks were detected in Koraput, with four involving both cutaneous human and animal deaths and one in animals only. Livestock losses included cattle (27), goats (2), and buffalo (1). Of the 38 samples collected (blood, bone, tissue, and soil), 11 (35%) tested positive for anthrax by RT-PCR. OUAT rapidly communicated results (<24 hours) to the state health department, leading to joint investigations and control measures, including livestock vaccination, safe carcass disposal, and medical outreach camps for screening and prophylaxis. In total, five district/block level meetings and two state-level consultations were held, culminating in a zoonotic roadmap draft, which included an anthrax prevention and control action plan. Conclusion: The study’s adoption of the One Health framework facilitated a rapid response to anthrax outbreaks in Koraput, effectively managing both human and animal cases. This model presents a viable approach for controlling anthrax in endemic areas of India.