Don't forget that the infant mortality rate (post birth) is 0.5%.

https://www.cdc.gov/nchs/fastats/infant-health.htm

Number of infant deaths: 19,582

Deaths per 100,000 live births: 541.9

Leading causes of infant deaths:

– Congenital malformations, deformations and chromosomal abnormalities

– Disorders related to short gestation and low birthweight: not elsewhere classified

– Sudden infant death syndrome