An Unusual Case of <scp> <i>Citrobacter koseri</i> </scp> Infection During Pregnancy at 27 Weeks: A Case Report and Literature Review

Early prenatal screening at 26 + 6 weeks detected <i>Citrobacter koseri</i> vaginal colonization in an asymptomatic high-risk gravida. Culture-guided IV ceftazidime (susceptible per CLSI testing) eradicated the pathogen without maternal/fetal compromise. Multidisciplinary management prevented vertical transmission, neonatal CNS complications, and yielded a healthy term delivery (Apgar 9/10). Emphasizes susceptibility-directed antimicrobial stewardship for optimal outcomes in rare pregnancy infections.