The side effects have been minimal and temporary for all three vaccines, generally going away within 24 hours. Side effects are normal signs that your body is building protection. The CDC reports it has seen no trends of serious or long-term side effects. To report serious side effects, call 1-800-822-7967 or vaers.hhs.gov/reportevent .

• Pfizer-BioNTech Side Effects: Injection site pain, tiredness, headache, muscle pain, chills, joint pain, fever, injection site swelling, injection site redness, nausea, feeling unwell and swollen lymph nodes.
• Moderna COVID-19 Side Effects: pain and tenderness at the injection site, swelling of the lymph nodes in the arm of the injection site, fatigue, headache, muscle pain, joint pain, chills, nausea, vomiting and fever.
• Johnson & Johnson Side Effects: pain, swelling and redness at the injection site, tiredness, headache, muscle pain, chills, fever, nausea and tiredness within a day or two of receiving the vaccine.

Rare Severe Allergic Reactions: In some rare cases, severe allergic reactions have occurred within minutes to an hour of receiving both the Pfizer BioNTech and the Moderna vaccines. Signs of a severe allergic reaction include trouble breathing, swelling of face and throat, rapid heartbeat, dizziness and a rash that covers the whole body. If you experience any of these symptoms call 9-1-1 immediately or go to the nearest hospital.