Bronchial Casts and Pandemic (H1N1) 2009 Virus Infection

cifi c. The high plasma creatinine level in the newborn sometimes refl ects the mother’s plasma creatinine level (9). However, kidney function of the mother of the newborn was within normal limits at the time of Caesarean section; plasma creatinine level of 0.7 mg/dL. An elevated plasma creatinine level is observed frequently in premature infants due to immaturity of the kidney tissue and will usually decrease within a few weeks. Oseltamivir was administered with dose adjustment based on the infant’s estimated glomerular fi ltration rate. The recommended dose of oseltamivir for glomerular fi ltration rate <30 mL/ min/1.73 m2 is 2–3 mg/kg/day, based on preliminary data obtained by a National Institutes of Health–funded Collaborative Antiviral Study Group (10). The success of our management strategy for this case suggests early treatment with oseltamivir can prevent severe illness in newborns with perinatal infl uenza A pandemic (H1N1) 2009 infection.