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Report #2887197

Received Feb 27, 2026

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Female
Age
32 yrs
State
MD
Recovered
Unknown
Vaccinated
Aug 20, 2025
Onset
Feb 3, 2026
Days to onset
167
Hospital days

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
HEPHEP B (RECOMBIVAX HB)MERCK & CO. INC.1Y009436
HEPHEP B (RECOMBIVAX HB)MERCK & CO. INC.2

Symptoms (3)

Exposure during pregnancyInappropriate schedule of product administrationNo adverse event

Symptom narrative

No additional adverse event; the patient is currently pregnant; First dose of RECOMBIVAX HB on 20-AUG-2025 and second dose on 03-FEB-2026; This spontaneous Prospective pregnancy report was received from a Pharmacist and refers to a 32-year-old female patient. The patient's medical history was not reported. The patient's concurrent conditions included pregnancy. Concomitant therapies were not reported. On 20-AUG-2025, the patient was vaccinated with first dose of Hepatitis B Vaccine (Recombinant) (RECOMBIVAX HB), (lot #Y009436 who had been verified to be a valid lot number, expiration date reported and validated as 12-FEB-2027), 1 mL administered for prophylaxis. It was reported that patient should have received the second dose on 20-SEP-2025 (not received at time of the report) but missed that dose and came into the pharmacy to receive the second dose on 03-FEB-2026 (reported as today) (inappropriate schedule of product administration) The pharmacist also reported the patient was currently pregnant but did not provide details on gestation or LMP (Exposure during pregnancy). Fetal and pregnancy outcome were not reported. No additional AE. No PQC.