Search and filter adverse-event reports.
1,929,324 reports(814 ms)
redness, hot , swelling
Redness, swelling and warm to the touch started the following day after vaccine.
The patient experienced no symptoms or adverse reactions following vaccination. The patient reported no issues other than mild, expected soreness at the injection site, which is a normal response after receiving vaccines.
Patient had redness at injection site on right arm. Over the next few days, redness spread, and felt hot to the touch. Patient went to urgent care and was diagnosed with cellulitis that patient believes she got when she was vaccinated.
10/21/2025 during our off-site flu clinic, employee developed an allergic reaction to the flu vaccine. We administered the vaccine around 2:30pm. Employee came back around 2:45pm complaining of tingling sensation of her fingers, swelling of lips and itchy thro…
Warm swollen red arm
Expired Rotavirus was given accidentally(exp.10/11/2025) on 10/20/2025. Mother called PCP office on 10/21 and reported that patient vomited x3 on 10/21, appear tiered and less active, still cough and sneezing as as the days before vaccination, denied fever or…
Blistered swelled entire forearm for over a month was waiting for body to absorb not sure of lasting g affects manufacturer was the only person s contacted to find out what could happen actually no ody knows what could happen
R shoulder joint inflammation and pain progressively worse 4 days after administration of Covid and Flu vaccines. Vaccine information unknown.
Redness, inflammation, warmth, and pain at site extending down arm from L deltoid; Worsening each day since vaccination; Pt reports having gotten Pneumonia and Covid vaccines from [withheld pharmacy name] (no other information available)
Patient received vaccine at 12:48pm. Just before returning from lunch at 2pm she let the technician that vaccinated her know she was not feeling well. She said she had vomited a little, she was warm, and dizzy. When questioned she stated no problems breathing,…
After 10 minutes, Client's R Forearm started to swell with fine non itchy rash. Client started to see black spots, so laid down on clinic bed. 911 called. 1600: BP 170/90. O2 100%. No SOB. Orient X3. Lungs clear. Benadryl 50 mg IM given in L thigh at 1611. EMS…
Within 3 days of vaccines (on 9/29/25) I had worsening shortness of breath (10/1/25) but was out of town. I had been having shortness of breath but it got worse. On 10/7, I went to the hospital and was transferred to a bigger hospital where I spent 12 days, in…
pt had a localized reaction including rash, hives, and severe itching and redness at the site of injection and upper torso.
Redness and bump on arm, bruising, nausea, and vomiting
pain immediately after administration, 5 days post administration bruising developed. A couple weeks passed and pain got worse, "feels like a shot of electricity". roughly 4 weeks later injection site turned purple. patient went to urgent care day 27 post adm…
Patient called into the office to state that she was having low blood pressure with dizziness while at work the night after she got her vaccinations. Patient also had body aches and is starting to have a cough. Patient was at the pharmacy at time of call and s…
patient reported experiencing pain in the arm that he was vaccinated and the pain radiates to the shoulder area
Pt has Side effect of bruising and swelling on the site of the injection.
patient left arm where the RSV vaccine was administered - 7 days after administration starting noticing increase in pain in the arm and pain was traveling and arm was beginning to become swollen and red. pain starting at shoulder and traveling down through elb…