Subject(s)

Infant, Newborn, Diseases/drug therapy , Penicillin Resistance , Penicillins/pharmacology , Streptococcal Infections/drug therapy , Streptococcus agalactiae/drug effects , Ampicillin/pharmacology , Brain Abscess/drug therapy , Brain Abscess/microbiology , Humans , Infant, Newborn , Infant, Newborn, Diseases/microbiology , Male , Microbial Sensitivity Tests , Recurrence , Streptococcal Infections/microbiology