Stray dog populations in low- and middle-income countries number in the hundreds of millions, facing significant welfare challenges and creating public health risks managed humanely through vaccination and sterilization.
Stray dogs face a welfare emergency characterized by malnutrition, injuries from traffic and dog fights, disease, poisoning, and culling operations. Mange, parvovirus, and distemper cause significant suffering in unvaccinated stray populations. Mass culling — shooting, poisoning, or electrocution — causes agonizing deaths and fails to provide long-term population reduction because survival rates for remaining dogs increase and reproductive rates accelerate. Humane sterilization and vaccination programs improve individual welfare while addressing public health.