Received May 19, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| HBHEPB | HIB + HEP B (COMVAX) | MERCK & CO. INC. | UNK | — | — |
no immunity to any of the antigens; This spontaneous report was received from a nurse prescriber via company representative referring to a 6 years old patient of unknown gender. The patient's concomitant medications were not provided. Current conditions included fully immunization and Sickle Cell Anemia and medical History included Bone Marrow Transplant. Drug history included vaccines (unknown what vaccines patient had received). On an unknown date, the patient was vaccinated with haemophilus b conjugate vaccine (meningococcal protein conjugate) (LIQUID PEDVAXHIB) for prophylaxis (strength, specific dosage, dose number, route of administration, anatomical site of application, lot number and expiration date were not provided). On an unknown date, the patient was "showing no immunity to any of the antigens" for those vaccines (Vaccination failure). Caller was unable to provide any specific timelines related to when the patient received any specific vaccines and when they developed the disease. No additional information/clarifications provided.
Active immunisation; Sickle cell anemia
Medical History/Concurrent Conditions: Bone marrow transplant