Miller EC, et al. - Using state inpatient administrative databases for California (2007–2011), Florida (2009–2011), and New York (2009–2011), a case-control study was conducted to investigate the relationship between infections and risk of peripartum stroke during delivery admissions. For this investigation, women whose admission included a vaginal or cesarean delivery, with a new diagnosis of stroke during the admission, were considered cases and were randomly matched to 3 in-state controls by age/admission year and presence and severity of hypertensive disorders of pregnancy. It was observed in the findings that infections present on admission increased stroke risk during delivery admissions in women with and without hypertensive disorders of pregnancy. The outcomes were driven by genitourinary infections and sepsis. The findings suggested that infections could be an underrecognized precipitant of peripartum stroke.