Keepers found him just hours after birth.

管理人员发现他时正好他出生。

youdao

Most babies have a closed ductus arteriosus by 72 hours after birth.

大多数婴儿在出生后72小时内动脉导管闭合。

youdao

Within hours after birth, Anaconda neonates can swim, hunt and care for themselves.

水蚺幼体在出生几小时后便可以游泳，捕猎和照顾自己了。

youdao

The drug is nevirapine. If it is given within seventy-two hours after birth, it can often protect babies from H.I.V.

VOA: special.2010.05.24

So it is unlikely that the research, published in the journal Neuropsychology, will radically change the way that obstetricians and paediatricians approach delivery of premature babies, and their care in the first hours after birth.

BBC: Brain risk from birth oxygen shortage

Two of the babies were on ventilators, or breathing tubes, in the hours after their birth, but those tubes were removed Monday night, Gupta said.

CNN: Octuplets doing 'very well' one day after birth

The time between when a woman begins labor and 48 hours after the birth of a baby is a high-risk period during which millions of newborn babies and new mothers die each year.

WHITEHOUSE: Office of Science and Technology Policy Blog