Irene Vélez-Torres1, Fabián Méndez2, Martine Vrijheid3. 1. School of Natural Resources and Environmental Engineering, Universidad del Valle, Calle 13 # 100-00, Cali, Colombia. 2. School of Public Health, Universidad del Valle, Calle 13 # 100-00, Cali, Colombia. fabian.mendez@correounivalle.edu.co. 3. ISGlobal, Institute for Global Health, Barcelona, Spain.