2304-51322304-5132S2304-5132202100040000710.31403/rpgo.v67i2380Peru0010202100102021674XXX1441442021202110109920212021701539-44202120212021World Health Organization202120212021202120212021202120212021202132616162021701640-520213331-23202113866842-4ACOG20212021202165-73Centers for Disease Control and Prevention2021202120212021ACOG News202120211110023620212021202120212021University of Oxford202120212021The Sun