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Report #2868750

Received Oct 27, 2025

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
Male
Age
23 yrs
State
CA
Recovered
Unknown
Vaccinated
Oct 24, 2025
Onset
Oct 24, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (MODERNA))MODERNAN/A3052550IM / LA

Symptoms (1)

Product preparation error

Symptom narrative

Timeline of Events 5:11 PM ? Employee removed two boxes of Moderna Spikevax prefilled syringes from frozen storage (-15°C to -50°C) and placed them into the refrigerator (2°C?8°C) for thawing. She labeled the boxes with an incorrect ?ready-to-use? time of 5:51 PM (40 minutes after removal). Per the XO COVID-19 Vaccine Reference Guide, thawing in the refrigerator requires 2 hours and 40 minutes for a carton of 10 syringes. Therefore, the correct ?ready-to-use? time should have been 7:51 PM. 5:55 PM ? The Moderna Spikevax dose was administered to the patient by employee, approximately 44 minutes after being placed in the refrigerator (well before the required thaw period). During administration: employee met injection resistance and could not fully discharge the syringe. Upon withdrawing the syringe, she noted that the vaccine appeared partially frozen (approximately 1 inch of frozen content remaining). Some vaccine liquid came into contact with her finger during inspection. 6:05 PM ? Employee reported the incident to the MA Lead. Employee, who had assisted in preparing the vaccines (Flu, COVID-19, and HPV #1), confirmed she and employee had verified the syringes together prior to administration. Deviation from Manufacturer and CDC Protocol According to Moderna and CDC storage and handling guidance: A prefilled Spikevax syringe requires at least 1 hour and 40 minutes to thaw in the refrigerator (2°C?8°C) before administration. The administered dose was thawed for only 44 minutes, meaning it was not fully thawed and therefore administered outside of manufacturer protocol. This constitutes a handling deviation.