Coronavirus Vaccine Side Effects (Pfizer)

The most commonly reported side effects, which typically lasted several days, were:

• Pain at the injection site
• Tiredness
• Headache
• Muscle pain
• Chills
• Joint pain
• Fever

Of note, Pfizer information states that, more people experienced these side effects after the second dose than after the first dose, so it is important for vaccination providers and recipients to expect that there may be some side effects after either dose, but even more so after the second dose.