VAERS Explorer

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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

1,929,324 reports(723 ms)

#2894526Apr 27, 2026
Male·1.3 yrs·MT·DTAPIPVHIB

inadvertently administered only the Hib component of the PE NTACEL vaccine, which was reconstituted with sterile water with no AE; Initial information received on 10-Apr-2026 regarding an unsolicited valid non-serious case received from other healthcare profes…

No adverse eventProduct preparation issue
#2894528Apr 27, 2026
Female·15 yrs·MI·MMRV

The patient received MMRV Proquad, although she was outside the indicated age range and should have received MMR and Varicella separate. The patient did not developed any side effect from this administration.

No adverse eventWrong product administered
#2894529Apr 27, 2026
Female·76 yrs·MNP

They also reported that the last vaccine administration ( Penmenvy 3/252026) arm was ?killing them? for 3 weeks with complaints that the muscle was sore.

MyalgiaPain in extremity
#2894532Apr 27, 2026
Male·Age unknown·NE·RSV

received the adjuvants only for Arexvy; received the adjuvants only for Arexvy; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of inappropriate preparation of medication in a elderly male patient…

Product preparation issue
#2894533Apr 27, 2026
Female·2.8 yrs·NC·HEP, HEPA

Mom contacted MD's office via portal message on the afternoon of the same date as patient's appointment (4/9/2026) to report that after she woke from her afternoon nap, she h ad "hives" spreading down her body. Due to the office being closed at this time, mom…

Urticaria
#2894534Apr 27, 2026
Male·16 yrs·IN·MENB, MNQ

SIRVA - vaccine reportedly given high on the deltoid. now patient with rotator cuff tendinopathy and bursitis.

BursitisProduct administered at inappropriate siteRotator cuff syndromeShoulder injury related to vaccine administration
#2894535Apr 27, 2026
Female·18 yrs·TYP

Stomach cramps followed by dizziness and fainting, followed by throwing up and cold sweats.

Abdominal pain upperCold sweatDizzinessSyncopeVomiting
#2894536Apr 27, 2026
Female·0.2 yrs·ME·DTAPIPV

Kinrix given in error instead of Vaxelis- no report of side effects/adverse outcomes by patient.

No adverse eventWrong product administered
#2894537Apr 27, 2026
Male·0.2 yrs·MI·VARCEL

Varicella immunization incorrectly administered at 2 months of age. Patient & parent aware, advised on effects to look out for.

Product administered to patient of inappropriate age
#2894538Apr 27, 2026
Female·65 yrs·MI·PNC21, RSV

Initial symptoms were flu like, lethargic and low grade fever, which resolved after about 48 hours. Patient now reports hard, red area at and bellow injections site that is spreading towards elbow and is warm to the touch.

Influenza like illnessInjection site erythemaInjection site indurationInjection site warmthPyrexia
#2894539Apr 27, 2026
Female·4 yrs·WA·DTAPIPV

REDNESS, SWELLING CEPHELEXIN 250MG BID FOR 7 DAYS

ErythemaLaboratory testSwelling
#2894542Apr 27, 2026
Unknown·0.8 yrs·DC·RVX

Caller stated no patient symptoms have been reported. No additional AE reported; A dose of ROTATEQ was administered to a 9 month old patient; This spontaneous report was received from an other health professional (medical assistant) and referred to a 9 months…

No adverse eventProduct administered to patient of inappropriate age
#2894543Apr 27, 2026
Female·68 yrs·LA·COVID19

Patient experienced muscle aches, fever, headache, generalized pain, elevated ketones about 4 hours after administration.

Blood ketone body increasedHeadacheMyalgiaPainPyrexia
#2894557Apr 27, 2026
Male·Age unknown·OH·PNC21

he had a violent reaction; This spontaneous report was received from a pharmacist via company representative, regarding to himself, a male patient of unknown age. The patient's medical history was not reported. The patient's past medications were not reported…

Immunisation reaction
#2894558Apr 27, 2026
SeriousDied
Male·81 yrs·NY·COVID19

Heart attack; This is a spontaneous report received from a Consumer or other non HCP. An 81-year-old male patient received BNT162b2 omicron (lp.8.1) (COMIRNATY (2025-2026 FORMULA)), on 28Sep2025 at 12:00 as dose 1, single (Batch/Lot number: unknown) at the ag…

Myocardial infarction
#2894560Apr 27, 2026
Male·1.7 yrs·NC·DTPPVHBHPB

Patient guardian consented for DTap, however Vaxelis was given instead. Patient monitored for over 20 minutes post vaccination. No adverse reactions occured.

No adverse eventProduct preparation issueRefusal of vaccination
#2894561Apr 27, 2026
Female·67 yrs·IL·HEPAB

The vaccine leaked out due to the defective needle, so re-administration with new vaccine with new needle had to be done.

Needle issue
#2894562Apr 27, 2026
Male·4 yrs·WI·DTAPIPV, MMRV

Approximately 10 minutes after vaccines were administered mom reported that patient c/o "throat feeling funny", itchiness all over body, swollen eyes. Cetirizine was given and patient discharged home. Patient brought back to clinic about 2 hours later with h…

ErythemaEye swellingOropharyngeal discomfortPruritusUrticaria
#2894563Apr 27, 2026
Female·63 yrs·OH·PNC20

Patient received Prevnar 20 vaccine subcutaneously rather than intramuscularly. Patient experienced erythema and increased soreness.

ErythemaIncorrect route of product administrationPain
#2894564Apr 27, 2026
Female·25 yrs·OH·TDAP

Vasovagal near-syncope that occurred within 5 minutes of vaccine administration. Patient verbalized feeling hot and overall unwell. She was visibly pale and not responding for a few seconds. Blood pressure was 53/35 at 1520. By 1700 patient's symptoms had com…

Feeling hotHyporesponsive to stimuliMalaisePallorPresyncope
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