Search and filter adverse-event reports.
1,929,324 reports(823 ms)
Ringing in ears. Apparently this is not treatable. The ringing continues to this day, 4 years later, both ears.
Patient felt very tired the evening after and woke up the next morning still feeling very tired and slept most of the day. Upon waking later in the day, she found that her left arm was very swollen and she was covered in hives and had a low grade fever. She we…
Seizure in left leg for 2 min
No adverse event reported. Reporting per Moderna after a temperature excursion, vaccine remained viable after the excursion per Moderna.
Patient reported that the vaccine might have been administered too high in the arm. She reported stiffness and pain when raising her arm. She said this is getting better with time. I asked her to see a doctor to which she declined.
Lesions tiny subcutaneous papule palpable under the skin to anterolateral L thigh where last week's Variax vaccine was administered. There is a 1.5cm periphery of light purple. Then 0.5cm band of clearing, then an outer eryth ring - total diameter is 4.5cm. bl…
It was similar to what happened in 2021 after a bad case of Covid. About 2 or so weeks after the shot, I started having brain stem, neck, and spinal cord pain. I have a blown disc and 2 bulging discs and we thought it may be that so I went back to phy. thera…
Patient reported back to pharmacy on 4/15/25 & stated that the day after vaccination while watching TV she had a visual disturbance, including flashing lights & vision loss. Also, on 4/15/25, patient returned to pharmacy & showed the injection site which now…
No adverse event reported. Reporting per Moderna after a temperature excursion, vaccine remained viable after the excursion per Moderna.
No adverse event reported. Reporting per Moderna after a temperature excursion, vaccine remained viable after the excursion per Moderna.
Client had a syncope episode that started right after being given the last vaccine (HPV9). Client was seated in a chair the entire time, so no fall or injury took place. RN immediately got the client some water which he drank a little and a fan was retrieved…
ischemic stroke caused death
Assumed right ankle pain/discomfort. Prior to vaccine, infant was ambulating well, taking 15+ steps when walking. After vaccine, did not walk for about 2 weeks. Negative x-ray. Self-resolved.
Patient came in to complete 6 vaccines required. After the first 3 shots patient started to feel lightheaded, chest pain, and blurred vision. Patient's wife who was present requested an ambulance. EMS services was contacted. After patient was able to relax fo…
no adverse events or reactions noted
Patient reported the following day with a ruptured blood vessel in left eye, with no pain or changes in vision.
MMR Vaccine was given to an 18yr male pt at 5:30pm on 4/14/2025 in the right deltoid. A meningococcal vaccine was supposed to be given. Parents of the pt and the pt have been notified via phone. No adverse effects or symptoms reported.
wrong vaccine was administered. Patient needed either Proquad or Varivax. The patient is traveling and needed certain vaccines. No adverse effects have been found, only wrong vaccine
Patient mistakenly received a second dose of the prevnar20 vaccine, she forgot she had previously received it. Patient reported no signs or symptoms after follow up occurred several days later.
Patient given pediatric dose of Hepatitis B vaccine instead of adult dose. Patient was given an additional dose of pediatric dose of Hepatitis B vaccine.