Overview
- An internal audit of all injections given in 2025 found at least 151 doses were administered after their expiration dates.
- The Health Department is cross-checking 137 flagged cases against individual vaccination cards to determine whether they involve actual expired vials or record errors.
- Affected products include routine hexavalent, tetravalent, and measles–mumps–rubella vaccines.
- Investigators identified inoculation lapses and unit-identification faults in Osakidetza’s system, with some issues previously noted in March.
- Authorities announced measures to improve vaccine traceability to reduce errors and prevent a repeat of these incidents.