CDC’s Vaccine Adverse Event Reporting System (VAERS)

Here’s the CDC’s database for adverse reactions to vaccines, including the COVID-19 vaccines. The data is submitted voluntarily. Anyone – healthcare providers, the public – can submit a report.

Vaccine Adverse Event Reporting System (VAERS)

The Vaccine Adverse Event Reporting System (VAERS) database contains information on unverified reports of adverse events (illnesses, health problems and/or symptoms) following immunization with US-licensed vaccines. Reports are accepted from anyone and can be submitted electronically at

Results are updated on Fridays, so this data is several days old. It’s not a complete list by any means and it may not be very accurate but it does provide some data. I don’t know how many people were vaccinated then but this shows 353 total adverse events. VAERS is known to underreport.

These are the top adverse reactions (to all manufacturers’ vaccines combined: Pfizer, Moderna, etc.), in alphabetical order. (Top reaction is headache.):

Arthralgia (joint pain) 22
Asthenia (weakness) 13
Blood Pressure Increased 16
Chest Discomfort 17
Chest Pain 10
Chills 50
Cough 10
Diarrhea 18
Dizziness 56
Dysgeusia (altered taste) 11
Dyspnea (difficulty breathing) 21
Erythema (rash) 12
Fatigue 63
Feeling Abnormal 10
Feeling Hot 15
Flushing 31
Headache 85
Heart Rate Increased 10
Hyperhidrosis (sweating) 24
Hypoesthesia (numbness) 11
Immediate Post-injection Reaction 15
Injection Site Erythma 14
Injection Site Pain 45
Injection Site Swelling 14
Malaise 13
Myalgia (muscle aches) 29
Nausea 54
Pain 40
Pain In Extremity 34
Palpitations 16
Paresthesia (pins and needles) 27
Paresthesia Oral 10
Pruritus (itching) 21
Pyrexia (fever) 42
Rash 17
Tachycardia (fast heart rate) 12
Throat Irritation 11
Throat Tightness 10
Vomiting 13

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