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[Streptococcus pneumoniae neonatal infection].

R Nader¹, S Tondeur, A Barrans

¹Service de pédiatrie, Centre hospitalier du Bassin de Thau, Sète.

Annales De Biologie Clinique

|December 7, 2005

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Early onset invasive pneumococcal disease in newborns is rare but severe. Maternal vaginal colonization with Streptococcus pneumoniae, though uncommon, can lead to neonatal sepsis with high mortality and neurological sequelae.

Area of Science:

Neonatal infections
Microbiology
Obstetrics

Background:

Neonatal sepsis is a serious condition, with Streptococcus pneumoniae accounting for 1-8% of cases.
Maternal vaginal colonization by S. pneumoniae is rare (0.03-0.75% yield).

Observation:

A case of early-onset invasive pneumococcal disease in a newborn acquired from the maternal vagina is presented.
Clinical presentation resembles other neonatal infections, but outcomes are severe, with 50% mortality and 13% neurological sequelae.

Findings:

Newborns are primarily infected via maternal vaginal colonization with S. pneumoniae.
Despite low carriage rates, the infection:colonization ratio is high, indicating significant risk.

Implications:

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Presumptive antibiotic treatment (amoxicillin +/- vancomycin) is recommended for neonates colonized with pneumococcus or born to colonized mothers.
Systematic screening for vaginal S. pneumoniae is impractical due to rarity and isolation difficulties.
Increased attention to maternal and neonatal pneumococcal colonization is crucial for improving outcomes.