Search and filter adverse-event reports.
1,929,324 reports(872 ms)
Patient was vaccinated on 9/12/25 @ 8:00am. child has never had reaction with prior flu injections before. Child was fine all day. Mother noticed itching later at night. next morning noticed a welt size 5x3 inches. mother gave Benadryl then took child to Urge…
Patient said he felt "different" immediately after getting the first vaccine (Fluzone HD). Within minutes he became dizzy and felt like he "had drank a beer" and said his throat felt itchy/scratchy. After 15 minutes or so, he started feeling better but still…
No reaction. Gave kinrix instead of DTAP.
SWELLING , REDDENING AND WARMTH AT THE SITE OF INJECTION
The patient stated that 24-48 hours after receiving Capaxive, her arm was very sore, red and hard. It progressively got worse (bigger, redder, itching, painful). She went to the doctor on 9/15 and was diagnosed with cellulitis. She was prescribed an antibio…
Evening of 9/13/25, patient became aware of slight swelling of deltoid area, described as fiery or heated. Started prednisone that she had at home to calm reaction as she has allergies but has never had reaction to vaccine. After prednisone dose, swelling st…
The Hib diluent was not used to reconstitute vaccine. Sterile water was used. Dose is considered invalid.
Red spot at vaccine site
Swollen, itchy, red and hot at vaccine site.
I have an arthus reaction. It is swollen, hard, itchy, and red has lasted for over 10 days now.
Injection site was warm and red to touch the next morning when patient awoke.
Patient stated the morning after vaccine started to have dizziness issues. Her legs made it "hard for her to walk" describing it as leg weakness. She described it mainly as balance issues.
Gave two other vaccines (COVID and RSV) in left arm. Then gave flublok in the right arm, patient reported pain from injection on the right arm. Sudden swelling of the injection site occurred and was circular, the size of a half dollar, hard to the touch, and w…
Immediately following administration of Heplisav-B vaccine in R deltoid at 2:45pm, a rash followed by hives encapsulated not only the vaccine sight, but also spread over both shoulders and to the other arm. A full set of vitals were taken with nothing abnormal…
Infant was given one dose of expired Hepatitis B (pediatric dose) on 9/16/25; vaccine expired on 9/14/25. Expiration date discovered after administration of vaccine.
Swelling, and warmth at the injection site along with some tingling in the fingers. The swelling was large, hard to touch, and warm at the injection site last about 4 days.
Immunization reaction Erythema (Confluent redness in his circle approximately 4 in in diameter. Positive swelling under the skin that is smooth. No induration. The area is warmer to touch than the rest of the skin of her left upper arm.) present. No bruisin…
PATIENT DESCRIBES SWELLING OF TOP LIP TWO HOURS AFTER IMMUNIZATION. SELF TREATED WITH LORATADINE
No adverse event, wrong vaccine given. No redness or swelling
24 year old patient given 0.5mL of Hep B vaccine.