0121-7577 0121-7577 S0121-75772021000100009 10.17151/hpsal.2021.26.1.1 Colombia 00 01 2021 00 01 2021 26 1 9 12 1 OPS 1986 2 OMS/GSA 3 2001 298 4 1994 350-73 5 OMS/CDSS 2008 6 El Pais 2020 7 2020 8 2010 9 Julio 21-25, 1997 Yakarta, Indonesia