Conclusion
Owing to the difficulties health services are encountering in dealing with the enormous challenge posed by the COVID-19 pandemic, it is of strategic importance that vulnerable groups such as pregnant women and newborns are not left by the wayside and that quality research is promoted so that practical clinical recommendations can be devised and implemented (22). In this critical situation, ItOSS has been strategic, allowing data collection rapidly thanks to the availability of a population-based network, consolidated during the last 10 years to monitor maternal mortality and severe morbidity in the country (23,24), and able to implement public health surveillance and research. The preliminary results described in the present study produced useful knowledge for clinical practice and generated research questions that will find an answer in further studies underway at international level. Our esteem and unconditional recognition go to caregivers involved both in frontline assistance and in the ItOSS research project, with whom we share the common goal of gaining a more in-depth evaluation of the effects of SARS-CoV-2 on mothers and newborns.