Pre/perinatal risk factors | Mother group B streptococcus (GBS) positive |
 | Maternal prolonged rupture of membranes (PROM) > 18 h |
 | Maternal chorioamnionitis (fever >38.5°, fetal tachycardia) |
 | Birth before 35 weeks of gestational age |
6 groups of suspect clinical signs and symptoms | Respiratory distress/apnea |
(signs and symptoms of one group = one abnormal finding) | Tachycardia/bradycardia |
 | Arterial hypotension/poor perfusion |
 | Hypothermia/hyperthermia |
 | Seizure/floppy infant/irritability/lethargy/poor feeding |
 | Vomiting/feeding intolerance/ileus |
Conventional laboratory examinations | White blood cell count < 5 G/L |
 | CRP > 10 mg/L |