Report #2837136

Received Apr 21, 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: 39 yrs
State: WI
Recovered: Recovered
Vaccinated: Apr 20, 2025
Onset: Apr 20, 2025
Days to onset: 0
Hospital days: —

Vaccines (2)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (HEPLISAV-B)	DYNAVAX TECHNOLOGIES CORPORATION	1	945664	IM / LA
MMR	MEASLES + MUMPS + RUBELLA (MMR II)	MERCK & CO. INC.	UNK	Y015022	SC / LA

Symptoms (4)

Loss of consciousnessPallorUnderdoseUnresponsive to stimuli

Symptom narrative

Heplisav vaccine was administered into left deltoid. A few minutes passed as immunizer prepared second vaccine. Administration of MMR vaccine into left arm (subcutaneous) was initiated and patient became pale and then unresponsive for a few seconds. Needle was withdrawn before entire dose administered. Patient appeared to lose consciousness for a few seconds (<10). When patient was able to respond to immunizer, he was assisted to elevate his feet and remain seated. Pharmacist provided a cool cloth for patient's face and neck. Patient was full coherent and reported that he felt fine and that this had happened before when he was much younger. Pharmacist remained with patient for about 5 minutes before he was allowed to move to waiting area for further observation. Patient remained at pharmacy for about 20 additional minutes with no additional symptoms.

Current illness

None reported

Medical history

None reported

Allergies

None reported

Prior vaccinations

Age 13, syncope about 20 minutes after unknown vaccine