Overview

• Antonella Prieto, 34, suffered a sudden preeclampsia episode at the Dinosaurios y el Mundo Jurásico exhibition and died after resuscitation efforts failed.
• Medical staff performed an emergency cesarean that delivered Julia Foster, who remained in neonatal intensive care with a grave prognosis until her death on July 25.
• The autopsy confirmed that untreated preeclampsia caused Prieto’s cardiac arrest, and prosecutor Alejandro Guevara has launched a formal inquiry.
• Witness accounts have raised questions about on-site equipment readiness and the roughly 30-minute ambulance response at the Vicente López venue.
• The Prieto–Foster family, already mourning Federico Foster’s drowning in March, now faces a second devastating loss.