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(826 ms)

#2867451Oct 21, 2025
Female·44 yrs·ND·FLU3

swelling of the tongue within a few minutes (sent to ER), received epi and prednisone. Blood pressure and heart rate were high in the ER. She has been having headaches, emesis, joint pain since.

ArthralgiaBlood pressure increasedHeadacheHeart rate increasedSwollen tongueVomiting
#2867452Oct 21, 2025
Female·76 yrs·FLU3

15-20 minutes after receiving vaccine, patient says she felt a burning pain and feeling of inflammation through her left axilla and into the front and back of her ribs. Over the next few days, the feeling of pain and inflammation spread to her neck muscles, ja…

InflammationPain
#2867453Oct 21, 2025
Female·5 yrs·WA·COVID19

An incorrect vaccine formulation was administered, resulting in a higher-than-authorized dose for the patient. The patient received Moderna Spikevax 12+ years (0.5mL) instead of the intended Moderna Spikevax 6 months?11 years (0.25mL) formulation. ? Following…

Incorrect dose administeredMalaise
#2867454Oct 21, 2025
Male·56 yrs·CA·HEP

Patient was given Engerix-B instead of a different Hep B vaccine that was ordered by the medical provider. Medical provider reviewed patient chart, noted no risk for receiving Engerix-B, and determined patient can complete the normal vaccine series.

Wrong product administered
#2867455Oct 21, 2025
Male·10 yrs·WA·COVID19

An incorrect vaccine formulation was administered, resulting in a higher-than-authorized dose for the patient. The patient received Moderna Spikevax 12+ years (0.5mL) instead of the intended Moderna Spikevax 6 months?11 years (0.25mL) formulation. Following di…

Incorrect dose administered
#2867456Oct 21, 2025
Female·59 yrs·NE·RSV

erythema 90mm x 50 mm below axillary line, with itching, mild swelling, reported 10/19/25. treated with 2 doses diphenhydramine and cold packs. per patient resolved by 10/21/25 afternoon. appeared as vaccination was given below deltoid site

ErythemaPruritusSwelling
#2867457Oct 21, 2025
Unknown·Age unknown·COVID19

rash; itchy; This is a spontaneous report received from a Consumer or other non HCP. Other Case identifier(s): MOD-2025-790242 (Moderna). A patient (age and gender not provided) received BNT162b2 omicron (lp.8.1) (COMIRNATY (2025-2026 FORMULA)), in 2025 as do…

PruritusRash
#2867458Oct 21, 2025
Female·7 yrs·WA·COVID19

An incorrect vaccine formulation was administered, resulting in a higher-than-authorized dose for the patient. The patient received Moderna Spikevax 12+ years (0.5mL) instead of the intended Moderna Spikevax 6 months?11 years (0.25mL) formulation. ? Following…

Incorrect dose administeredMalaise
#2867459Oct 21, 2025
Female·46 yrs·PR·COVID19, HEPAB

A call was received from (name withheld) at (name withheld) Hospital stating that patient arrived at the hospital complaining of vomiting, diarrhea, nausea, and fever. After treatment, it was determined that these were adverse reactions to the vaccines she had…

DiarrhoeaNauseaPyrexiaVomiting
#2867460Oct 21, 2025
Female·0.4 yrs·NH·RV5

Child was given small amount of Rota vaccine. Began to vomit. Was able to stop and remainder of rota vaccine was administered without issue. This was the second child of the day who vomited after receiving this Rota vaccine lot number.

Vomiting
#2867461Oct 21, 2025
Female·29 yrs·WI·COVID19, FLU3

Patient stepped out of vaccination room stating to our technician she is having an allergic reaction. Tech informed pharmacist and called EMS right away. Patient looked red and was having some trouble speaking. Pharmacist administered an epipen while on phon…

AphasiaErythema
#2867462Oct 21, 2025
Female·0.1 yrs·NH·RV5

Patient was given small amount of rota vaccine and began to profusely vomit. Patient's vomiting caused them to have difficulty breathing. Took several minutes to call child down and return to normal breathing. After patient was exhausted and we kept patient in…

DyspnoeaFatigueVomiting
#2867463Oct 21, 2025
Female·35 yrs·NV·COVID19

HEART PALPITATIONS

Cardiac valve diseaseEchocardiogram abnormalPalpitations
#2867464Oct 21, 2025
Female·85 yrs·MA·FLU3

High does flu vaccine given instead of Covid vaccine. Last dose of high dose flue was on 10/082025

Extra dose administeredWrong product administered
#2867465Oct 21, 2025
Female·55 yrs·CA·UNK

generalized pruritis, throat itching, scalp itching, shortness of breath and chest tightness.

Chest discomfortDyspnoeaPruritusThroat irritation
#2867466Oct 21, 2025
Female·35 yrs·MO·FLU3

Left sided jaw pain15 minutes after injection. Feels like when she had her wisdom tooth pulled. Pain and pressure. Left deltoid pain , non-radiating. Laid down when she went home and pain went away but returned when sitting or standing up. Advised by provi…

DiscomfortInjection site painPain in jaw
#2867467Oct 21, 2025
Female·1.3 yrs·IL·DTAPIPVHIB, PNC20

Fever of 103 morning after receiving vaccines. Treated with tylenol/motrin.

Pyrexia
#2867468Oct 21, 2025
Female·91 yrs·OR·VARZOS

Pharmacy was having trouble accessing database, patient came in to receive her 2nd vaccine. Pharmacy gave it to her, unfortunately realized they had given patient a 3rd dose of the vaccine when database did come back online. There are no adverse reactions repo…

Extra dose administeredNo adverse event
#2867469Oct 21, 2025
Female·61 yrs·NM·COVID19

Suspected pericarditis/inflammation based on experience with identical pain symptoms that occurred a week after cardiac ablation. Mild but persistent chest pain around heart with an ebb and flow nature. No other symptoms. After phone review with cardiology o…

Angina pectorisPericarditis
#2867470Oct 21, 2025
Female·24 yrs·IL·UNK

Thirty minutes after my vaccine I was sitting at my computer, asking [name withheld] a question and I began to feel faint. I told [name withheld] this and I started to hyperventilate so she told [name withheld] to get the reclining chair. Once I was laying dow…

Blood pressure increasedDizzinessFeeling abnormalHyperventilation
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