Live birth

A live birth of a human being occurs when a fetus is expelled and separated from the mother's body and subsequently shows some sign of life, such as voluntary movement, heartbeat, or pulsation of the umbilical cord, for however brief a time. In the absence of such sign, the event is considered a fetal death[?]. This definition was created by the World Health Organization in 1950 and is chiefly used for public health and statistical purposes. Whether the birth is vaginal or Cesarean[?], and whether the baby is ultimately viable, is not relevant to this statistical definition.