Search and filter adverse-event reports.
1,929,324 reports(889 ms)
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.
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.
Arm soreness and fever of 101ºF began a few hours after injection and continued for about 48 hours. Then a 2 inch x 5 inch red, warm "rash" about 4 inches below injection site appeared about 48 hours after injection. This "rash" does remain painful and when…
I received the Covid 19 Shot around 11: 00 AM on 10-31-24 and by 3:PM the same day I had large blotchy hives all over my torso front and back. I have continuously had the same hives since then. Sometimes they are on my legs and arms. Most recently they have…
Onset of cluster headache, night sweats, nausea, fatigue, and insomnia approximately 1 week following vaccine and lasting about 1 month total. Felt harder to breathe for a few weeks, different from usual asthma symptoms. Some tachycardia and dyspnea with exe…
Developed redness and swelling at injection site on the evening after. Has still been painful, swollen. Parent has noticed increasing redness on surface of skin, and area is warm to touch.
Redness and itchiness, right arm, where Varicella was given a day after. Pt reports feeling disoriented 3 days after administration of vaccine.
Patient was diagnosed and given treatment for Bell's palsy on 4/13/2025. Valtrex 1 gram, t tablet TID for 7 days; prednisone 20 mg 3 tablets QD for 7 days
pt did not have any symptoms since he got the vaccine
Patient received Havrix vaccine first, in the left arm, then Menquadfi second in the right arm. Immediately after the Menquadfi vaccine was administered, patient started having a seizure. Seizure lasted less than a few minutes, 911 was called, fire department…
Flu- like symptoms immediately following injections, RECURRENT CANCER at the same site that was treated with radiation in 1995. TURBO CANCER after 26 years of remission.
Pericarditis, recurring starting in November 2021 went ER. Again in 2022, unsure of month, ER treatment. In November of 2023 ER treatment and hospitalization for 4 days. Other adverse effects include severe worsening of herpes simplex 2 symptoms in frequ…
I never felt OK after the PFIZER Booster. My condition deteriorated weekly, monthly, now 3.5 years after the shot. Pain all over turned out to be small fiber neuropathy. My stomach started hurting and I've seen many doctors as recently as April 5, 2025; anothe…
Patient received the wrong vaccine. Patient was to receive the MMR vaccine, instead she received Shingrix.
Injection received February 2022. Patient had extreme back pain through December 2022, leaving employment 1/5/2023. Suffered Drop Foot and limited mobility 1/18/2023. Sent to emergency room due to lack of ability to urinate or have bowel movements 1/23/2023. R…
Patient stated he became disoriented with fog brain and very fatigued, arm was sore for 2 weeks
Received booster vaccination 2/10/2022. Didn't feel well with migraine headaches, overall weakness and fatigue since injection. Back pain, feverish feeling and throat irritation resulted in urgent care visit June 2023. Bloodwork confirmed reactivation of Epste…
Swelling at injection site and rash developed 7 days later per patient