Some use the «closed colony» model, which means dogs that are
kept solely for blood - donor purposes, like animals
kept at a vet
school or in a vet
clinic.
«For every community in Chicago, free spay / neuter, vaccine, and veterinary
clinics for those who need financial assistance; a behavioral hotline; a pet food pantry in all 50 wards; a rehoming / counseling service for those who can not
keep their pets; homeless / domestic abuse shelters that cater to people and their pets; a humane education class in every
school; coordinated information systems such that all lost animals in Chicago are quickly reunited with their owners.