The impact and poverty reduction implications of foot and mouth disease control in southern Africa - Perry, Brian D.; Randolph, Thomas F.; Ashley, S.; Chimedza, R.; Forman, A.; Morrison, J.; Poulton, C.; Sibanda, Lindiwe Majele; Tebele, N.; Stevens, C.; Yngstrom, I. (International Symposia for Veterinary Epidemiology and Economics, 2003)