Received May 9, 2026
Reports are unverified and do not show that a vaccine caused an event. Full disclaimer
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| HEP | HEP B (ENGERIX-B) | GLAXOSMITHKLINE BIOLOGICALS | 3 | 9DF34 | — |
| HEP | HEP B (ENGERIX-B) | GLAXOSMITHKLINE BIOLOGICALS | 1 | LZ5X7 | — |
Drug Exposure During Pregnancy; Early third dose; This non-serious prospective pregnancy case was reported by a other health professional via call center representative and described the occurrence of drug dose administration interval too short in a 40-year-old female patient who received HBV (Engerix B) (batch number 9DF34, expiry date 06-AUG-2028) for prophylaxis. Co-suspect products included HBV (Engerix B) (batch number 9DF34, expiry date 06-AUG-2026) for prophylaxis and HBV (Engerix B) (batch number LZ5X7, expiry date 10-JUL-2028) for prophylaxis. On 28-APR-2026, the patient received the 3rd dose of Engerix B. On 21-APR-2026, the patient received the 2nd dose of Engerix B. On 24-MAR-2026, the patient received the 1st dose of Engerix B. On 28-APR-2026, an unknown time after receiving Engerix B, not applicable after receiving Engerix B and Engerix B and not applicable after receiving Engerix B and Engerix B, the patient experienced drug dose administration interval too short (Verbatim: Early third dose). On an unknown date, the patient experienced vaccine exposure during pregnancy (Verbatim: Drug Exposure During Pregnancy). The outcome of the drug dose administration interval too short and vaccine exposure during pregnancy were not applicable. Pregnancy exposure: Pregnancy Exposure (Engerix B): Trimester unknown Pregnancy Exposure (Engerix B): Trimester unknown Pregnancy Exposure (Engerix B): Trimester unknown Estimated Delivery/Due date: 07-MAY-2026 Pregnancy Outcome: Pregnancy was ongoing This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK Receipt Date: 29-APR-2026 A medical assistant mentioned that a pregnant patient received her first dose of Engerix B on 24-MAR-2026, second dose on 21-APR-2026, and early third dose on 28-APR-2026.