0120-3347 0120-3347 S0120-33472020000300105 10.1097/cj9.000000000000017 00 09 2020 00 09 2020 48 3 105 106 1 2003 1477-98 2 2014 15-36 3 2012 32-7 4 2006 20 4-40 5 2005 63 235-52 6 2020 382 727-33 7 2020 48 138-44 8 World Health Organization 2020 9 Centers for Disease Control and Prevention 2020 10 World Health Organization 2020 11 Centers for Disease Control and Prevention 2020