Neonatal group B streptococcal infection: a 7-year experience

Area of Science:

• Neonatal infections
• Bacterial pathogenesis
• Public health surveillance

Background:

• Retrospective analysis of neonatal group B streptococcal (GBS) infections over a seven-year period.
• Investigated trends, risk factors, clinical features, and outcomes of GBS infections in neonates.
• Study conducted at Chang Gung Memorial Hospital of Kaohsiung.

Purpose of the Study:

• To determine the trend of neonatal GBS infection over seven years.
• To assess risk factors, clinical features, and patient outcomes associated with neonatal GBS infection.
• To inform potential public health strategies regarding GBS in neonates.

Main Methods:

• Retrospective review of medical records of infants diagnosed with neonatal GBS infection.
• Inclusion criteria: positive sterile body fluid cultures from January 1996 to December 2002.
• Data collected included demographic and clinical information.

Main Results:

• 33 cases of neonatal GBS infection identified over seven years, with an increasing trend from 1996 to 2001.
• 16 early-onset and 17 late-onset GBS infections observed. Prolonged rupture of membranes was a key maternal risk factor in early-onset cases.
• Common presentations included respiratory distress (early-onset) and fever (late-onset). Mortality rates were 13% (early) and 6% (late), with gestational age and pneumonia being significant mortality predictors.

Conclusions:

• A potential increase in neonatal GBS infections was observed.
• Lack of national incidence data for GBS infection and maternal colonization in Taiwan prevents assessment of intrapartum chemoprophylaxis necessity.
• A recommendation for establishing comprehensive surveillance for GBS in Taiwan.