In the study, the most common side effects of using "COVID-19 Vaccine Moderna" were mild to moderate, and human health improved within a few days after vaccination. People experienced pain and swelling at the injection site, fatigue, complained of headache, muscle and joint pain, chills and fever. Some were sick with nausea and vomiting. These side effects occurred in more than 1 in 10 subjects in the study.
Redness at the injection area and rash occurred in less than 1 in 10 people. Itching at the injection area occurred in less than 1 in 100 people. Swelling of the face that may affect people who have previously undergone cosmetic injections, as well as muscle weakness on one side of the face (acute peripheral facial paralysis or paralysis) has been reported rarely, less than 1 in 1,000 people.
Allergic reactions have also been reported with "COVID-19 Vaccine Moderna", including very few severe allergic reactions (cases of anaphylaxis). As with all vaccines, "COVID-19 Vaccine Moderna" should be administered carefully with appropriate treatment.