In a new study published in JAMA, researchers at Karolinska Institutet and Karolinska University Hospital have examined the association between a positive SARS-CoV-2 test during pregnancy and complications in mothers and their newborn babies. Almost two out of three pregnant women who tested positive for SARS-CoV-2 were asymptomatic and the researchers found no higher prevalence of complications during delivery or of ill-health in the neonates. However, preeclampsia was more common in infected women.
On 25 March, Karolinska University Hospital in Sweden launched a screening programme (PCR test) for the new coronavirus for all women admitted for delivery. The researchers behind the present study have collected these data and linked them to data from the Swedish Pregnancy Register for all 2,682 women who gave birth at the hospital between March 25 and July 24, 2020.
In order to investigate the association between test positivity and medical outcomes in both mother and