Abstract
We report a case of a patient presenting with an intrauterine death at 40 weeks gestation. She had felt no fetal movements for 24 hours and her amniotic membranes were “intact”. Despite all the routine microbiology tests being negative a diagnosis of group B streptococcus was only discovered in the baby when a post-mortem was carried out. “Intact” membranes does not always exclude the diagnosis of group B streptococcus infection. Obstetricians and midwives should explain to such unfortunate patients that a full diagnosis may not be possible without a post-mortem.