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Report #2862525

Received Oct 1, 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
Female
Age
Age unknown
State
—
Recovered
Unknown
Vaccinated
Sep 22, 2025
Onset
Sep 22, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (MODERNA MNEXSPIKE))MODERNAUNK—IM

Symptoms (3)

AnxietyUnderdoseWrong technique in product usage process

Symptom narrative

she is feeling "unsafe because she doesn't feel protected/she's scared; 0.2ml dose". HCP added that "there's a small volume of air and so we push up on the plunger just to get rid of the air bubble; 0.2ml dose". HCP added "there's a small volume of air and so we push up on plunger just to get rid of air bubble/doesn't know how much she's receive; This spontaneous case was reported by a pharmacist and describes the occurrence of ANXIETY (she is feeling "unsafe because she doesn't feel protected/she's scared), WRONG TECHNIQUE IN PRODUCT USAGE PROCESS (0.2ml dose". HCP added that "there's a small volume of air and so we push up on the plunger just to get rid of the air bubble) and UNDERDOSE (0.2ml dose". HCP added "there's a small volume of air and so we push up on plunger just to get rid of air bubble/doesn't know how much she's receive) in an elderly female patient who received mRNA-1283 (MNEXSPIKE PFS) for COVID-19 prophylaxis. No Medical History information was reported. On 22-Sep-2025, the patient received dose of mRNA-1283 (MNEXSPIKE PFS) (Intramuscular use) .2 milliliter. On 22-Sep-2025, the patient experienced WRONG TECHNIQUE IN PRODUCT USAGE PROCESS (0.2ml dose". HCP added that "there's a small volume of air and so we push up on the plunger just to get rid of the air bubble) and UNDERDOSE (0.2ml dose". HCP added "there's a small volume of air and so we push up on plunger just to get rid of air bubble/doesn't know how much she's receive). On an unknown date, the patient experienced ANXIETY (she is feeling "unsafe because she doesn't feel protected/she's scared). At the time of the report, ANXIETY (she is feeling "unsafe because she doesn't feel protected/she's scared), WRONG TECHNIQUE IN PRODUCT USAGE PROCESS (0.2ml dose". HCP added that "there's a small volume of air and so we push up on the plunger just to get rid of the air bubble) and UNDERDOSE (0.2ml dose". HCP added "there's a small volume of air and so we push up on plunger just to get rid of air bubble/doesn't know how much she's receive) outcome was unknown. For mRNA-1283 (MNEXSPIKE PFS) (Intramuscular use), the reporter did not provide any causality assessments. It was stated that the patient was over 75 years of age. Concomitant medication was not reported. HCP administered the vaccine to this patient, and the patient had reached out to the store saying that she was feeling unsafe because she didn't feel protected. She was in a situation where she didn't know how much she had received. The HCP stated that the patient stated she was sure that when the HCP was ejecting an air bubble/priming the vaccine, the patient saw a stream of liquid and she was not confident that she received the 0.2ml dose. HCP added that there was a small volume of air and so push up on the plunger just to get rid of the air bubble that was something they did with every injection, the patient was looking and saw a full-on like stream of liquid. HCP stated it to be one of the challenges with this vaccine. HCP also stated that the patient was thinking she might have received next to nothing but then she didn't feel confident enough to get another dose because she was scared. It was unknown if the patient experienced any additional symptoms/events. Treatment medication was not reported.