IntroductionThe coronavirus disease 2019 (COVID-19) first outbreak at the end of 2019 in Wuhan, China, and quickly spread into more than 200 countries worldwide, turning into a global pandemic. As a new emerging and severe contagious disease, all people are vulnerable to it. Therefore, it’s not surprising that more and more pregnant patients are being reported.1, 2 The maternal and fetus outcomes of COVID-19 pregnant women are the focus of our attention. Fortunately, based on the results of current studies, the clinical characteristic and outcomes of COVID-19 maternal patients are similar to that of non-pregnant women. No maternal death has been reported.1, 2 But the consequences of infection with SARS-CoV-2 for fetus or newborn are uncertain; especially, there is still huge controversy regarding whether SARS-CoV-2 can be transplacentally transmitted from infected pregnant women to their fetuses. A previous review, through analyzing a total of 38 pregnant women with COVID-19 in China, didn’t found intrauterine transmission of SARS-CoV-2.2 However, a recent study by L Dong et al3 described a newborn born to a COVID-19 mother with elevated IgM antibody level to SARS-CoV-2, indicating a possible transplacental transmission.Here, we reported a newborn born to a convalescent COVID-19 mother has a viral pneumonia on the day of birth and elevated IgM/IgG antibody levels to SARS-CoV-2 at 3 days age.