Search and filter adverse-event reports.
1,929,324 reports(887 ms)
patient received vaccine only three years after first dose, which is less than CDC recommends
She developed headache and dizziness right after getting the vaccine. Observed for 30 minutes and felt better. Developed fever on the way home to 101. That evening had low blood pressure until 8PM. Hives around injection site and down her arm. Continued with…
ADVERSE TREATMENT- VACCINE BOOSTERS ADMINISTERED IN ERROR. PATIENT WAS NOT YET DUE. PARENTS ADVISED
NONE - NOT AGE APPROPRIATE ADMINISTRATION
Pt woke up the following morning with hives around the injection site which spread to her neck and chest. At time of reporting the hives were getting better
Allergic reaction - hives, flushing, tingling lips about 15 minutes after vax - was taken to the ED on site for further treatment
About 3 days after being vaccinated. He started having numbness in both hands and both legs as they were numb. He thought the this would go away after a few days but they continued to be numb. He passed out when leaving the gym but then came to. The ambulance…
Gave expired vaccine. No adverse reaction noticed. Given at 11:45. Reported at 11:50
afib; This spontaneous case was reported by a consumer and describes the occurrence of ATRIAL FIBRILLATION (afib) in an 87-year-old male patient who received SPIKEVAX NOS (SPIKEVAX NOS) for COVID-19 prophylaxis. Concurrent medical conditions included Emphy…
left arm sore, red, swollen - fever, aches, chills, exhaustion. 48 hours post injection redness spread on arm
Left arm with significant swelling, from a few inches above elbow up to his shoulder. It is red, mottled, and warm to touch and running fevers around 100. Some tenderness to the site. Has full range of motion.
Vaccine administered low. Patient presented with redness and infection in left arm. Antibiotics prescribed and started on 09/30; Patient reported incident
Rash and swelling on the injection site Right deltoid
Patient received both RSV and Tdap vaccinations in the same arm on 9/17. On 9/29 patient woke up to a red, swollen, and tender/hot area on the upper left arm, and was feeling dizziness and headache. Patient went into the ER and was found have a BP if 199/80 a…
Following vaccination on September 30, 2015, with his vaccines my son showed no immediate issues except that he lost his life essence. Approximately two years later, around October 2017, he began displaying signs of developmental regression, including loss of…
Adverse event occurred approximately 2 weeks after he first injection/shot was received on 6 Jan 2021. My right arm developed a large lump around the bicep area. The lump is the size of a tennis ball. It has been 4 years, and the lump still has not gone away.…
The morning of 9/28/25 the patient experienced a rash on her abdominal area with intense itching. Later patients arms appeared to be slightly swollen with a fine rash. Patient did not experience any difficulty breathing , increased heart rate, etc. The patie…
Patient received all four vaccines and then once the last one (HPV) was given, he fainted for 1-2 seconds. He slumped forward and mom and I helped lay him backwards, he did jerk a little bit. Parents and I helped him lay down completely once he gained consciou…
Patient was the first of 4 people he was with receiving the flu vaccine. He appeared well until after the fourth person received the vaccine, about 10 minutes later. He was standing against the wall and he began staring and then falling. The vaccinator noti…
Nausea and Vomiting