0034-7531 0034-7531 S0034-75312020000500001 Cuba 00 00 2020 00 00 2020 92 1 2020 2 2020 3 2020 4 2020 9 1 1 19 5 2020 22 2 2 31-7 6 2020 7 WHO 2020 8 2011 85 23 23 12201-15