“…The prevalence figures for SARS-CoV-2 in screened pregnant women vary in different publications, sometimes considerably (< 1 – 15%), which is largely due to the different prevalence in the general population (for example, New York City and London versus Thuringia in Germany) 28 , 30 , 42 , 43 , 44 , 45 , 46 . However, it is assumed that the “real” prevalence of infections is significantly higher, as up to 89% of infections are asymptomatic or mild 17 , 28 , 29 , 47 , 48 , 49 , 50 , 51 , 52 . Also in the SCENARIO cohort, four of the six positive cases where asymptomatic at study inclusion.…”