Seroprevalence and Risk Factor Assessment of Foot and Mouth Disease Virus in the Pakistan–Afghanistan Border Region

Foot and mouth disease (FMD) is a highly contagious transboundary viral disease affecting livestock, causing significant economic losses. This sero-epidemiological study investigated FMD distribution and associated risk factors in cattle and buffaloes along the Pakistan–Afghanistan border. A total of 800 serum samples were collected from cattle (n = 610) and buffaloes (n = 190) and tested for antibodies against FMD viral structural proteins (SP) and non-structural proteins (NSP) using ELISA. Overall, 35.25% (282/800) of samples were NSP-positive, indicating natural infection. Serotype-specific analysis showed serotype O as the most prevalent (66.1%), followed by serotype A (50%) and Asia-1 (32%). Cattle exhibited higher FMD prevalence (37%; 95% CI: 33–40) than buffaloes (30%; 95% CI: 23–37). Significant spatial variations in SP and NSP Seroprevalence were observed across different areas. Risk factor analysis identified male sex, young age (1–2 years), crossbred and exotic breeds, summer season, large herd size, smallholders subsistence production systems, poor body condition, and animal movement as factors associated with significantly higher (p < 0.05) FMD circulation. These findings indicate that FMD is highly endemic in the border region and highlight the critical need for government-led mass vaccination campaigns, targeted risk-based surveillance, and stringent movement control to mitigate disease spread. Implementation of such control strategies is essential to safeguard livestock health and protect the regional economy from substantial losses.