Received Jan 21, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| VARZOS | ZOSTER (SHINGRIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | UNK | — |
| VARZOS | ZOSTER LIVE (ZOSTAVAX) | MERCK & CO. INC. | UNK | UNK | — |
Suspected vaccination failure; Got both brands of shots and still get bouts of shingles; This serious case was reported by a consumer via interactive digital media and described the occurrence of vaccination failure in a patient who received Herpes zoster (Shingrix) for prophylaxis. Co-suspect products included Varicella zoster vaccine live (Oka/Merck) (Zostavax) for prophylaxis. On an unknown date, the patient received Shingrix and Zostavax. On an unknown date, an unknown time after receiving Shingrix and an unknown time after receiving Zostavax, the patient experienced vaccination failure (Verbatim: Suspected vaccination failure) (serious criteria GSK medically significant) and shingles (Verbatim: Got both brands of shots and still get bouts of shingles). The outcome of the vaccination failure and shingles were not reported. It was unknown if the reporter considered the vaccination failure and shingles to be related to Shingrix. The reporter considered the vaccination failure and shingles to be not reported if related to Zostavax. The company considered the vaccination failure to be unrelated to Shingrix. It was unknown if the company considered the shingles to be related to Shingrix. The company considered the vaccination failure and shingles to be not reported if related to Zostavax. Additional Information: GSK Receipt Date: 14-JAN-2026 This case was reported by a patient via interactive digital media. This case was considered as suspected vaccination failure as details regarding completion of primary vaccination schedule, time to onset for shingles and laboratory confirmation regarding shingles were unknown at the time of reporting. The batch number was not provided, and unable to contact the reporter.; Sender's Comments: A case of Vaccination failure, unknown time after receiving a dose of Shingrix in a subject. Causal association is indeterminate. Case lacks further information on medical history, concurrent conditions and laboratory confirmation. Based on the available information a possible causality that the event was caused by the GSK product cannot be ascertained. Consent for further follow up has not been received.