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(781 ms)

#2877717Dec 12, 2025
Male·29 yrs·COVID19, FLU3

Patient got both covid and flu shot in left arm on 12/11/25. Patient called pharmacy to report arm was very sore and swollen all the way down to his hand. I advised him to go to urgent care. He refused but did allow me to transfer him to a triage nurse at t…

Pain in extremity
#2877718Dec 12, 2025
Male·1.5 yrs·FL·FLU3, UNK

Infant presented on November 21, 2021 with fever and progressive rash following influenza and RSV vaccination on November 17, 2021. One day post-vaccination (November 18, 2021), he developed periorbital and perioral rash that persisted for several days, then s…

Dermatitis diaperHypophagiaIrritabilityMeasles antibodyPerioral dermatitisPyrexia+1 more
#2877719Dec 12, 2025
Female·4 yrs·NY·DTAP, IPV, MMR, VARCEL

Right thigh developed a 10cm x 8cm area of redness, tenderness, and induration, consistent with arthus reaction about 20 hours after the shot. It worsened the following day.

Injection site erythemaInjection site indurationInjection site painType III immune complex mediated reaction
#2877720Dec 12, 2025
SeriousDisabled
Male·1.5 yrs·CA·HEPA, MMR, VARCEL

my son had a high fever the next morning he woke up with red circular rash/blotches throughout his body. i called to let the doctor know what was going on and they scheduled him to go in . the doctor said it was a reaction to the vaccines and it would go away.…

AphasiaGait inabilityPyrexiaRashRash macular
#2877721Dec 12, 2025
Male·79 yrs·NV·RSV

expired dose administered, no symptoms @ this time

Expired product administeredNo adverse event
#2877722Dec 12, 2025
Female·81 yrs·FL·FLU3

Patient developed large red, warm to the touch, area of skin below the injection site. Patient did not have redness at the injection site. She said she had taken ibuprofen thinking it would decrease the irritation the day after the injection. She came in Frida…

Injection site erythemaInjection site warmth
#2877723Dec 12, 2025
Male·13 yrs·CO·HPV9

Patient became flush, eyes became dilated/redness occurred. They had a slight cough but that went away shortly. Breathing was still normal and did not change. They stated they did not feel like they were having any sort of anaphylactic reaction. Patient st…

CoughFlushingMydriasisOcular hyperaemia
#2877724Dec 12, 2025
Female·79 yrs·RSV

Patient received the same vaccine twice. Once in January 2024 and again in December 2025. The second dose is per the doctor's request. The doctor did not send a prescription to the pharmacy.

Extra dose administered
#2877725Dec 12, 2025
Female·68 yrs·FL·PNC20, VARZOS

none, pt received 2 prevnar in error. 10/24 and 12/25

Extra dose administered
#2877726Dec 12, 2025
SeriousHospitalizedLife-threatening
Male·89 yrs·MA·COVID19

Sudden onset of vomiting, 102 degree fever, weakness, inability to speak or respond., severe hypotension. Taken to emergency room and admitted to [withheld name of hospital].

AphasiaAstheniaHypotensionPyrexiaUnresponsive to stimuliVomiting
#2877727Dec 12, 2025
Male·13 yrs·OR·PNC15

Pt receive extra dose, consulted with provider. Per provider pt to return in 8 weeks for booster. Parent of pt was notified and understand protocol.

Extra dose administered
#2877728Dec 12, 2025
Female·82 yrs·ME·FLU3

Developed respiratory symptoms, cough, wheezing, degenerated into pneumonia

CoughPneumoniaRespiratory symptomWheezing
#2877729Dec 12, 2025
Female·18 yrs·AZ·COVID19, FLU3

Patient got dizzy immediately after second vaccine was administered and partially fainted for a short period of time. Slumped backwards and the chair had arms so patient did not fall. No sign of allergic reaction so epipen/benadryl was not used. Patient given…

DizzinessHypotoniaImmediate post-injection reactionSyncope
#2877730Dec 12, 2025
Male·55 yrs·HI·COVID19

At 9:40am Resident reported right arm pain (injection site), staff checked resident's vital signs: increased respiration to 30/min, desaturation to 80% on room air, temperature of 101 and heart rate at 49/min. Resident was transferred to ER at 10:07am and retu…

AtelectasisBlood lactic acid normalBody temperature increasedChest X-ray abnormalDifferential white blood cell countElectrocardiogram normal+13 more
#2877731Dec 12, 2025
Female·63 yrs·TX·PNC21

Patient has a red arm and fever

ErythemaPyrexia
#2877813Dec 12, 2025
Female·10 yrs·OR·HPV9, MNQ

Patient was given meningococcal ACWY due to miscommunication. Too early.

Inappropriate schedule of product administration
#2877816Dec 12, 2025
Female·3 yrs·UT·FLU3, FLUN3

Pt has not reported any adverse reactions

Adverse reactionExtra dose administered
#2849343Dec 11, 2025
Female·Age unknown·WA·CHIK

Patient was given ceftriaxone 500 mg with 1 mL diluent instead of Bicillin L-A 1,200,000 units/2 mL; Case reference number US-BN-2025-001551, initially downloaded from Vaccine Adverse Event Reporting System (VAERS) on 08-Sep-2025, is a spontaneous case receive…

Product preparation error
#2877136Dec 11, 2025
Male·76 yrs·SC·COVID19

Patient received two covid vaccines within 1 month of each other. He should have gotten 1 flu shot and one covid shot

Extra dose administeredNo adverse eventWrong product administered
#2877336Dec 11, 2025
Male·Age unknown·HPV9

The patient fainted after GARDASIL 9 administration.; This Spontaneous report was received from Merck employee and referred to a male patient of unknown age. The patient's medical history included Fainting. The patient's previous drug reactions or allergies, a…

Syncope
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