Testing of patients and coronavirus disease 2019 (COVID-19) infection before scheduled deliveries.

To the Editor, Recently Herraiz et al. [1] found that the percentage of positive tests in asymptomatic women admitted to delivery was only 0.5% during the post-peak period in Madrid(1). Their results was Concordant with those of Gagliardi et al. [2] but discordant with those found in others cities such as New York [3], [4], [5]. Bianco et al. showed that more than 15% of asymptomatic maternity patients tested positive for Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection despite having screened negative with the use of a telephone screening tool. [.]