Search and filter adverse-event reports.
1,929,324 reports(746 ms)
Hives about 45 minutes post vaccine. I took benadryl. Symptoms resolved by the next day
Appx 12 hours following administration was woken from sleep with severe, debilitating, diffuse joint pain as well as muscle aches, night sweat, and chills
Per patients wife -- Patient woke up at 3AM with 101.4 F fever, patient took 2 Advils and after 40 min his fever went up to 102.4 with shakes. Patient went to the restroom around 3:30AM but he had no strength to get off the toilet. His wife called 911 and he…
4 days after injection, injection site was still itching. Patient states injection site was greatly swollen the day after injection. Patient did not seek medical attention. Patient states the injection site on 10/18/25 was reduced by half from what it was on t…
given 2 doses, 1 in may 2025 and 1 in october 2025
Patient asked to receive the RSV vaccine. Intake technician asked patient if she has received RSV vaccine before, and patient denied. However, doctor office called and stated patient has already received it in January 2025.
Vaccine given was not age appropriate for the patient. Patient was accidentally given the Moderna Spikevax 12yr+ instead of the 6m-11yr. No current reactions report, pt mother made aware and will report any adverse reaction. Call the CDC for clinical guidance,…
On October 16, 2025, the donor reported experiencing generalized itching and a swollen lymph node in the left axillary area on August 15, 2025, following rabies immunization #1 given on August 14,2025. Donor stated the itching and swollen lymph node resolved s…
Vaccine was expired and inadvertently administered to the patient. AS of today no negative signs or symptoms are reported by the parents.
Fatigue followed by cough and wheezing the evening of 10/16 which lasted about an hour. On 10/17 fatigue continues followed by body aches the remainder of the day. .No fever. On 10/18, fatigue continued but achiness resolved.
As of today, Oct 21, 2025, patient still have a raised lump from where shot was given. It also has a little heat to it. There is no pain or redness.
Cough, diarrhea
Patient supervisor reported that patient broke in hives, puffy eyes, and severe itching about 30 minutes after receiving the flu vaccine. They administered Benadryl, Zyrtec, and Pepcid. They placed patient in cool area for observation.
Describes more than usual bleeding from injection, like a capillary was hit. 5 days after injection became more painful than expected for being that long post-immunization, wondering if delayed reaction, reported chills, nausea, warmth at injection site. Prese…
Patient supervisor reports that patient got really itchy and turned red about 30 minutes after receiving her vaccine. Her supervisor gave her Pepcid.
Injection into right deltoid on 10/1/25 was immediately painful and has continued to be painful. (3 weeks to date) Vaccinated has had trouble raising arm above the shoulder level without severe pain and cannot sleep on her right side. X-ray of right shoulder…
Patient describes her arm was hurting the day the vaccine was given, and over the course of the next few weeks, the pain spread from her arm to her shoulder to her collarbone, and for about a month couldn't move her hand well. The pain hurts the most when she…
Patient reports lingering shoulder pain from 10/7/25 (vaccine date) until 10/16/25 (reported date) and states it started since the vaccine was administered. Patient states he will follow up with urgent care to obtain imaging to rule out shoulder injury.
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…
Woke with fever 101.3, severe body aches and burning sensation throughout body. Patient admits she is in remission for lupus and often before an episode she has similar complaints without fever. Received vaccine at pharmacy