“…Most of the cases were tested during the acute phase, 1-5 days after maternal symptoms 14,18,22,26,29,31,34,36,[38][39][40][41]45 or between 5 and 8 days after onset of maternal symptoms. 10,13,16,20,32,33,37 Other samples were collected during the convalescent phase at 14-19 days after maternal 17,24,29,42 or infant onset of symptoms. 25 The time between maternal symptoms and breast milk sample collection was not reported in four neonates with COVID-19 21,35 and other 25 neonates without infection.…”