Heartworm disease is entirely preventable but causes significant suffering and death in dogs lacking access to affordable preventive medication — equity gaps are a welfare crisis.
Heartworm prevention equity is a direct welfare issue: dogs whose owners cannot afford monthly preventive medication face unnecessary suffering from a disease that is simple and cheap to prevent. The welfare gap is geographic and socioeconomic — high prevalence in southern states correlates with lower-income communities where veterinary care is least accessible. Low-cost veterinary clinics, charitable prevention programs, and prescription-free preventive access (as available in some countries) reduce this gap substantially. The animal welfare community increasingly recognizes that addressing barriers to preventive care — cost, geographic access, veterinary shortage areas — is as important for dog welfare as advocating for higher welfare farming standards. Systemic solutions including community veterinary clinics serve more dogs than individual owner appeals.