Category 4: Low risk (Infection unlikely) | One abnormal finding: |
 | - pre/perinatal risk factor*, OR |
 | - suspect clinical symptom*, OR |
 | - abnormal laboratory examination* |
Category 3: Intermediate risk (Infection possible) | Two abnormal findings: |
 | - pre/perinatal risk factors*, AND/OR |
 | - suspect clinical symptoms*, AND/OR |
 | - abnormal laboratory examinations* |
Category 2: High risk (Infection probable) | Three abnormal findings: |
 | - pre/perinatal risk factors*, AND/OR |
 | - suspect clinical symptoms*, AND/OR |
 | - abnormal conventional laboratory examinations* |
Category 1: Proven infection | ≥ 1 abnormal finding (pre/perinatal risk factors, clinical symptoms, laboratory examinations) AND a positive culture |