Neonatal death: Case definition & guidelines for data collection, analysis, and presentation of immunization safety data

. 2016 Dec 1;34(49):6027–6037. doi: 10.1016/j.vaccine.2016.03.040

1. Live born infant	AND
2. Gestational age ≥22 and <28 weeks (GA Level of Certainty = 1) [28]	OR
3. Birth weight ≥500 g but <1000 g	AND
4. Death of infant in first 28 days of life	AND
5. Medically-confirmed death