Map of the study area showing the study communities (white dots). Inset shows locations of Moreno Department and Santiago del Estero Province within Argentina. The communities included were: (1) El Rincón, (2) Bella Vista, (3) San Juan, (4) San José, (5) Hornos Vittar, (6) La Ponderosa, (7) El Mercado, (8) El Fiscal, (9) Ashpa Puka, (10) Luján, (11) San Cristóbal, (12) Santa Lucía, (13) La Perla, (14) Pampa Charquita, (15)Yolanda, (16) La Blanquita, (17) Libertad-barrio, (18) Laprida, (19)Villa Isabel, (20) Libertad, (21) Santa María, (22) La Dormida, (23) Esperanza, (24) Cañada, (25) Bragado, (26) Central Dolores, (27) San Francisco, and (28) Villa Brana. The numbers represent each community.