The First Case Report of Neonatal Bacterial Meningitis Caused by Streptococcus alactolyticus

Abstract

Streptococcus alactolyticus is grouped in S. bovis/S. equinus complex (SBSEC). SBSEC is found in the intestinal flora of humans and animals [1]. Certain bacteria include in SBSEC have caused human infection such as bacteremia or meningitis, but S. alactolyticus was identified rarely as pathogen in a few case. Especially, only one case was reported in neonatal sepsis. A case of fatal neonatal sepsis without meningitis due to S. alactolyticus has been reported, but the pathogen was identified in gastric fluid and samples from ear, trachea, and nasopharynx, not in blood and cerebrospinal fluid (CSF) [2]. Until now, there was no case report that was culture-proven S. alactolyticus as pathogen of neonatal bacterial meningitis. This is the first case presenting neonatal bacterial meningitis and sepsis caused by S. alactolyticus and treated successfully. A 28-day-old baby girl presented to our hospital with 2 day-fever history. She was born at 36 weeks and 2 days of gestational age, weighing 2,800 g by cesarean section. There were no prenatal and perinatal problems. After birth, she was healthy, fed well and had been cared-for at home. She got hepatitis B vaccination at birth. Examinations on other hospital revealed a fever, heart rate, and respiration rate of 38.7°C, 168 beats/min, and 44/min, respectively. There were Letter to the editor

Case Report: Streptococcus alactolyticus as a Rare Pathogen of Mitral Endocarditis

“…The same mechanism is frequently involved in several extra-cardiac conditions caused by SBSEC ( 3 ). S. alactolyticus has been described as a precipitator agent in a case of severe diabetic ketoacidosis and in two cases of extra-cardiac infection: a fulminant neonatal sepsis and a recent case of neonatal meningitis ( 15 , 16 ).…”