Fernando C Barros, Robert B Gunier, Albertina Rego, Loïc Sentilhes, Stephen Rauch, Serena Gandino, Jagjit S Teji, Jim G Thornton, Alisa B Kachikis, Ricardo Nieto, Rachel Craik, Paolo I Cavoretto, Adele Winsey, Paola Roggero, Gabriel B Rodriguez, Valeria Savasi, Erkan Kalafat, Francesca Giuliani, Marta Fabre, Anne Caroline Benski, Irma Alejandra Coronado-Zarco, Stefania Livio, Adela Ostrovska, Nerea Maiz, Fabiola R Castedo Camacho, Ashley Peterson, Philippe Deruelle, Carolina Giudice, Roberto A Casale, Laurent J Salomon, Constanza P Soto Conti, Federico Prefumo, Ehab Zakaria Mohamed Elbayoumy, Marynéa Vale, Valeria Hernández, Katherine Chandler, Milagros Risso, Emily Marler, Daniela M Cáceres, Guadalupe Albornoz Crespo, Ernawati Ernawati, Michal Lipschuetz, Shabina Ariff, Ken Takahashi, Carmen Vecchiarelli, Teresa Hubka, Satoru Ikenoue, Gabriela Tavchioska, Babagana Bako, Adejumoke I Ayede, Brenda Eskenazi, Zulfiqar A Bhutta, Stephen H Kennedy, Aris T Papageorghiou, Jose Villar
BACKGROUND: In early 2023, when Omicron was the variant of concern, we showed that vaccinating pregnant women decreased the risk of severe COVID-19 related complications, and maternal morbidity and mortality. OBJECTIVES: To analyze the impact of COVID-19 during pregnancy on newborns and the effects of maternal COVID-19 vaccination on neonatal outcomes, when Omicron was the variant of concern. STUDY DESIGN: INTERCOVID-2022 is a large, prospective, observational study, conducted in 40 hospitals across 18 countries, from November 27, 2021 (the day after the World Health Organization declared Omicron the variant of concern) to June 30, 2022, to assess the effect of COVID-19 in pregnancy on maternal and neonatal outcomes, as well as vaccine effectiveness (VE)...
February 15, 2024: American Journal of Obstetrics and Gynecology