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(790 ms)

#2877056Dec 9, 2025
SeriousHospitalized
Male·10 yrs·TX·FLU3

erythema and swelling around the administration site with multiple vesicle and bullous lesions

C-reactive protein increasedCulture wound negativeDermatitis bullousFull blood count normalInjection site erythemaInjection site reaction+4 more
#2877057Dec 9, 2025
Male·12 yrs·AZ·COVID19

Patient was administered a lower dose amount than needed for Covid-19 Spikevax 2025-2026 vaccine. Patient received .25ml instead of .5ml

Underdose
#2877058Dec 9, 2025
Female·4 yrs·ME·COVID19

Patient was give .5mL of Spikevax when she should have received .25mL. Dr. did call parent to notifiy her of this incident.

Incorrect dose administered
#2877059Dec 9, 2025
Female·75 yrs·AZ·FLU3

SIRVA, left arm/shoulder pain, limited shoulder mobility x 6 weeks. Treatment included a subacromial cortisone injection to the left shoulder. Recommended continued use of RICE protocol and NSAIDS as needed.

ArthralgiaInjected limb mobility decreasedPain in extremityShoulder injury related to vaccine administrationX-ray limb
#2877060Dec 9, 2025
Female·53 yrs·IL·TDAP

swelling/infection/rash/pain

InfectionPainRashSwelling
#2877061Dec 9, 2025
Female·72 yrs·FL·COVID19

severe chest pain; stomach cramps; shortness of breath; headache; This is a spontaneous report received from an Other HCP and a Consumer or other non HCP, Program ID. A 72-year-old female patient received BNT162b2 omicron (kp.2) (COMIRNATY (2024-2025 FORMULA)…

Abdominal pain upperChest painDyspnoeaHeadache
#2877062Dec 9, 2025
SeriousHospitalized
Female·0.3 yrs·OR·DTAPIPVHIB, PNC20, RV5

Vomiting and intussusception

IntussusceptionSurgeryVomiting
#2877063Dec 9, 2025
Male·68 yrs·NY·FLU3

Muscle pain, nausea, headache, urge to vomit. Essentially, flu-like symptoms without the actual flu. I don?t know the name of the manufacturer because it?s in light pen on the carbon copy.

HeadacheInfluenza like illnessMyalgiaNauseaVomiting
#2877064Dec 9, 2025
Female·67 yrs·PA·MMR

While administering, needle and syringe went apart and vaccine was splashed out of the syringe

Device connection issue
#2877065Dec 9, 2025
Male·37 yrs·AZ·HEPA

Symptoms started 2-3 hours after vaccine. Nausea, fever of 101.2 and sweating. No vomiting but he reported he felt like he had the flue. He went to bed and felt better by 10:00AM when he woke up

HyperhidrosisInfluenza like illnessNauseaPyrexia
#2877066Dec 9, 2025
SeriousDisabled
Female·30 yrs·WI·RSV

Edd- 11/27/2023. Normal pregnancy. Got a growth US at 28 weeks and again at 36 weeks. Birth- primary C-section for breech presentation 8lbs 1oz. My daughter was born with cerebral palsy. She had an mri to confirm 09/2025. It was said the brain damage occurre…

Breech presentationCaesarean sectionExposure during pregnancyFoetal damageNeonatal disorderUltrasound antenatal screen normal
#2877068Dec 9, 2025
Female·10 yrs·TN·FLU3, HEPA, HPV9, IPV, VARCEL

Patient had brief syncopal episode, fell backwards, caught by nurse and did not hit her head. Patient placed lying down with feet in the air and awakened within seconds. Patient stated feeling fine and wanted to continue with vaccinations. Brief rest period gi…

FallSyncope
#2877069Dec 9, 2025
Male·39 yrs·VA·TDAP

The patient received a Tdap vaccine in the right arm on 09/30/2025. After the vaccination, the patient developed right shoulder pain, which persisted and prompted a return visit to the clinic on 10/03/2025. The patient reported that the pain began after the in…

ArthralgiaProduct administered at inappropriate site
#2877070Dec 9, 2025
Female·4 yrs·TX·HEP

Wrong Hep B vaccine was administered. Patient received Hep B Engerix-B Adult in right Deltoid LOT 4BX39 EXP 07/29/2027. Patient mom was notified by Dr. Poison control was contacted under case #

Wrong product administered
#2877071Dec 9, 2025
SeriousHospitalized
Male·0.5 yrs·PA·DTPPVHBHPB, FLU3

Febrile seizure

Febrile convulsion
#2877072Dec 9, 2025
Female·34 yrs·AL·FLU3

Employee experienced weakness and sensation changes in the upper extremities. Headaches, numbness and tingling. Unable to even brush her hair. Treated in the ED on 11/28/25. Returned to the ED on 12/6/25 and admitted to Neuro ICU.

Computerised tomogram headHeadacheHypoaesthesiaIntensive careLoss of personal independence in daily activitiesMuscular weakness+2 more
#2877073Dec 9, 2025
Female·62 yrs·SC·UNK

Arm red and swollen from top of shoulder to the elbow intense pain with or without moving thr arm arm hot to touch. severe headache, fever from day of vacine until early morining on fourth day ranging from 102-103.2 degrees farheinheit. saw Dr on Friday th…

HeadacheInjection site erythemaInjection site painInjection site warmthNauseaOral discomfort+3 more
#2877074Dec 9, 2025
Male·28 yrs·MD·HEPA, MNQ, SMALLMNK

Patient presenting 12/9/2025 for persistent left arm pain. Reports after vaccine had swelling at Mpox site which has subsided. Persistent subjective weakness with overhead motion and grip strength. Decreased sensation to light touch along posterior left deltoi…

Injection site swellingMuscular weaknessPain in extremityParaesthesia
#2877075Dec 9, 2025
Female·65 yrs·MI·PNC20

Patient received vaccine at appointment. The next day, she developed pain in left shoulder with decreased ROM. Pain has persisted to today. Improved ROM but still in pain

ArthralgiaMobility decreased
#2877076Dec 9, 2025
Male·3 yrs·WI·MNQ

Menveo 2 vial ordered. Menveo 1 vial administered.

Underdose
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