• Maria Angela Sculli, Gloria Formoso, and Laura Sciacca.
• Interassociative Diabetes and Pregnancy Study Group, Italian Association of Diabetologists (AMD), Italian Society of Diabetology (SID), Rome, Italy; UOC Diabetologia e Endocrinologia, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy.
• Nutr Metab Cardiovasc Dis. 2021 Jun 30; 31 (7): 2151-2155.

AimTo discuss available information on the opportunity for pregnant women affected by diabetes/obesity to receive COVID-19 vaccine.Data SynthesisPregnant women with SARS-CoV-2 (COVID-19) infection are at high risk for severe acute respiratory syndrome and adverse outcomes. Pregnant women with severe COVID-19 present increased rates of preterm delivery (<37 gestational weeks), cesarean delivery and neonatal admissions to the intensive care unit. Comorbidity such as diabetes (pregestational or gestational) or obesity further increased maternal and fetal complications. It is known that diabetic or obese patients with COVID-19 present an unfavorable course and a worse prognosis, with a direct association between worse outcome and suboptimal glycol-metabolic control or body mass index (BMI) levels. Critical COVID-19 infection prevention is important for both mother and fetus. Vaccination during pregnancy is a common practice. Vaccines against COVID-19 are distributed across the world with some population considered to have a priority. Since pregnant women are excluded from clinical trials very little information are available on safety and efficacy of COVD-19 vaccines during pregnancy. However, it is well known the concept of passive immunization of the newborn obtained with transplacental passage of protective antibodies into the fetal/neonatal circulation after maternal infection or vaccination. Moreover, it has been reported that COVID-19 vaccine-induced IgG pass to the neonates through breastmilk. Therefore, maternal vaccination can protect mother, fetus and baby.ConclusionsAfter an individual risk/benefit evaluation pregnant and lactating women should be counselled to receive COVID-19 vaccines.Copyright © 2021 The Italian Diabetes Society, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.

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