Search and filter adverse-event reports.
1,929,324 reports(740 ms)
Pt was hospitalized with very low O2 sats around 78. No other sx are known by me at this time
Patient was given the high dose instead of flublok. Patient did not have any adverse reactions
Mistakenly gave 7 year old client two doses of Pfizer 12+ vaccine. Was supposed to receive one dose Pfizer 5-11 y and one dose of flu.
Pt states that her arm developed a bulge, and she could clearly see where the injection was given. She said it hurt to touch and took a couple of day to resolve
Recurrent episodes of significant fussiness over the following weeks after vaccination, later diagnosed with intussusception
Client developed bilateral pulmonary embolisms around 10/20/2025 and was hospitalized for several days. Required intensive care treatment. Physicians unable to determine underlying conditions leading to event. Client has been discharged from the hospital as of…
The patient developed facial swelling with (itchy) rashes and hives, and mild fever (maximum 100 °F) for one week. The patient was evaluated by Dr on 10/21/2025 and received treatment for allergic reaction (antihistamines and monitoring). Symptoms gradually im…
Dizziness, vomiting, headache, unsteady gait
63-year-old client given Fluad instead of Flucelvax.
Patient received wrong vaccine. Patient received a high dose covid spikvax but should of received a .25ml dose spikvax covid. Provider called parent and explained what had happened, answered any questions and told parent what adverse reactions to watch for and…
Administered Fluad to client age 63 years instead of Flucelvax.
I have been sick with fever and head pain since 10:30 pm Friday after my Pfizer vaccination at 3 pm. I was in bed 13 hours that night, 11 pm - 1 pm. Saturday in terrible head pain, muscle cramps, and shivering. Zero deep sleep, 8 hours of intermittent sleep, a…
Patient passed away suddenly on Oct 24th, it was suspected she had developed Giant Cell Arteritis (headache, neck and shoulder ache, jaw pain, vision changes) for which she had been started on prednisone.
No adverse events noted, administration error incorrect dose administered.
Patient states she had chills, arm pain in both arms and fatigue for 2-3 days after vaccination. She continues to have arm pain in left deltoid below her vaccine injection. She has been self treating with acetaminophen, ibuprofen and heat. These all help but d…
Injection site reaction: red, swollen, induration, itchy
Tdap given first. Immediately after injecting HPV patient stated she felt dizzy and fell backwards on to exam table. Medical Assistant never left her side and called for provider. As soon as provider entered, patient was awake and talking. She said she "black…
Stinging, burning sensation immediately upon vaccination and continued for several hours despite application of ice packs to shoulder and 600mg ibuprofen, and keeping arm moving after vaccination. Interrupted normal work badly enough that I contacted the nurse…
RN 10/24/25 1332 Addendum Pt arrives ambulatory to triage, received meningococcal B vaccine this AM, since then has been having dizziness, nausea, vomiting, SOB on exertion, tachycardia, and achy joints. Pale color in triage. No meds PTA. AO x 4 GCS 15 2…
Patient received wrong Covid vaccine dose. Patient was given a high dose of .50ml vaccine but should of received a .25ml covid vaccines dose. 2 hours after the vaccine patient developed a fever of 99.0. Patient on 10/24/25 developed a high fever of 101.2-103.…