“…Literature reports on GIS medical and veterinary applications include malaria (Beck et al, 1994), Rift Valley fever (Linthicum et al, 1987), filariosis (Thompson et al, 1996), African trypanosomosis (Rogers and Randolph, 1993), theileriosis (Lessard et al, 1990), Onchocerca (Richards, 1993), Leishmania (Cross et al, 1996), Amblyomma variegatum (Hugh-Jones et al, 1992), Lyme disease (Kitron et al, 1992), Fasciola (Zukowski et al, 1991;Malone, 1997), and Schistosoma (Cross and Bailey, 1984;Malone et al, , 1997.…”