Vertical Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 From the Mother to the Infant

To the Editor Although coronavirus disease 2019 (COVID-19) cases are rare in neonates, Zeng et al¹ have collected data on 33 neonates born to mothers with COVID-19. As far as we know, previous detailed clinical and laboratory information was available for more than 30 neonates delivered by women who tested positive for SARS-CoV-2.² In the Zeng et al cohort,¹ 3 infants (9%) presented with symptomatic COVID-19 infection. The authors provide details on maternal features, delivery type, gestational age, birth weight, sex, or asphyxia, among others. However, similarly to previous data regarding perinatal severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, they have not paid attention to feeding type.