1729-519X 1729-519X S1729-519X2020000400001 Cuba Cuba 00 00 2020 00 00 2020 19 1 2018 391 10139 10139 2492-5 2 World Health Organization 2020 3 World Health Organization 2020 4 2019 33 869-89 5 2015 13 6 2018 46 2 2 165-8 7 2020 69 15 15 472-6 8 2020 9 2020 14 2 2 229‐31