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(780 ms)

#2890816Mar 25, 2026
Female·4 yrs·CA·MMRV

Patient developed localized allergic reaction- 18 cm x 10 cm area on left upper thigh of erythema, induration, warmth, pruritic, tender. Onset approximately 24 hours after vaccine administration.

Injection site erythemaInjection site indurationInjection site painInjection site pruritusInjection site warmth
#2890817Mar 25, 2026
Female·74 yrs·CO·UNK

She has a fever and also a circular welt on her arm at the injection site

Injection site reactionPyrexiaUrticaria
#2890818Mar 25, 2026
Female·59 yrs·PR·COVID19

The vaccine was administered outside the beyond use date. the beyond use date was 03/21/2026 and was administered today 03/25/2026

Expired product administered
#2890819Mar 25, 2026
Female·11 yrs·WA·DTAP, MNQ

DTaP was given, however she was supposed to have been given a Tdap instead

Wrong product administered
#2890822Mar 25, 2026
Female·84 yrs·IL·VARZOS

redness and swelling and on the same side of the injection, 2 days after vaccine administration. tender to the touch. looks like a red mild possible rash, but doesn't indicate itching, but patient self described as "rash"

ErythemaRashSwellingTenderness
#2890823Mar 25, 2026
SeriousLife-threatening
Female·1.2 yrs·CA·MMR

Exactly a week later she had a severe fever that was difficult to control. Sometimes exceeding 104 F. Urgent care couldn?t lower her temp without putting her on a Tylenol and Motrin plan (grouped 1 hour apart) at 6 hour intervals.

Influenza A virus test negativeInfluenza B virus test negativePyrexiaSARS-CoV-2 test negative
#2890824Mar 25, 2026
Female·56 yrs·FL·VARZOS

I have 102.5 fever, body aches, stomach, pain, and general malaise

Gastrointestinal disorderMalaisePainPyrexia
#2890825Mar 25, 2026
Female·21 yrs·HEP

Vasovagal response to Hep B vaccination

Presyncope
#2890826Mar 25, 2026
Male·46 yrs·PA·COVID19

Heart palpitations intermittent around 3am to early mornings. Blood pressure spike

Blood pressure increasedCardiac stress testElectrocardiogramPalpitationsUltrasound scan
#2890827Mar 25, 2026
SeriousHospitalizedLife-threatening
Female·34 yrs·NY·COVID19

Vision blurs, appetite increase, memory issues

Bone density decreasedIncreased appetiteInfluenzaLaboratory testMemory impairmentVision blurred+1 more
#2890864Mar 25, 2026
Female·71 yrs·MA·VARCEL

No adverse events experienced but received the wrong vaccine. I am 71 yr old had varicella at age 10yr with positive titers as I am a retired physician and was given varicella instead of shingles vaccine at primary care office 11/21/2025. Found out after I rec…

No adverse eventWrong product administered
#2890866Mar 25, 2026
Female·0.8 yrs·WA·COVID19

3/12 Covid vaccine was ordered along with influenza vaccine to be given. Duplicate Covid vaccines were given in error. MD was notified & spoke to parents. Patient to monitor for now. 3/13 - RN called parent. Pt experiencing minimal side effects - fever, less e…

AstheniaExtra dose administeredPoor quality sleepPyrexia
#2890480Mar 24, 2026
Female·79 yrs·MS·RSV

The injection was more painful than most. The site is still sore with limited arm mobility.

InflammationInjected limb mobility decreasedInjection site painMusculoskeletal stiffnessX-ray limb abnormal
#2890481Mar 24, 2026
SeriousDied
Male·70 yrs·CA·COVID19

Initial symptoms were multiple. Including headaches, chest pain and difficulty breathing. Eventually patient died on October 4th 2024 from a heart attack.

Chest painDeathDyspnoeaHeadacheMyocardial infarction
#2890482Mar 24, 2026
SeriousHospitalized
Female·28 yrs·CA·YF

Horrible Allergic reaction caused for hospitalization. Swollen eyes & face, hives, dehydrations, unable to keep food down (vomiting), dry heaving, diarrhea, migraine, fever, lost weight, symptoms last 2 weeks. missed school (finals prep & finals) missed work.…

DehydrationDiarrhoeaEye swellingHypersensitivityImpaired work abilityLoss of personal independence in daily activities+7 more
#2890483Mar 24, 2026
Female·45 yrs·MI·RAB, UNK

Rabies non bite exposure 03/17/26. Imovax dose #1 administered in wrong site at left gluteal on 03/20/26. Manufacturer recommends NEVER using gluteal IM. Rabies Immune Globulin was injected IM at 3 sites, one of which was right gluteal on 03/20/26. Imovax dose…

Product administered at inappropriate site
#2890486Mar 24, 2026
Unknown·Age unknown·NC·MMR

patient that received 2 doses of MMR II as a child received a third dose about a month ago as a booster dose.; No additional AE; This spontaneous report was received from pharmacist and refers to a child patient of unknown age and gender. The patient's medical…

Extra dose administeredNo adverse event
#2890496Mar 24, 2026
Male·Age unknown·GA·MMR, MMRV

No additional AE reported. No PQC reported.; Nurse reports she administered both PROQUAD and PRIORIX to an adult male patient today 3/20/2026. No additional AE details provided. Nurse consents to follow-up. No additional AE reported. No PQC reported.; This spo…

Extra dose administeredNo adverse event
#2890497Mar 24, 2026
Female·Age unknown·VA·TYP

The patient took the third dose of Vivotif a day later and the fourth dose took 30 hours after the third dose.; Case reference number US-BN-2024-002800 is a spontaneous case initially received from a nurse via Med Communications (reference number: USBAV24-3068…

Inappropriate schedule of product administration
#2890498Mar 24, 2026
Female·Age unknown·MD·VARZOS

Missed Dose; This non-serious case was reported by a consumer via patient support programs and described the occurrence of incomplete course of vaccination in a female patient who did not receive Herpes zoster (Shingrix) for prophylaxis. The patient's past m…

Incomplete course of vaccination
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