NEW YORK: Side effects such as pain and swelling at the shot spot, fatigue, headache, fever and chills are common for Moderna and Pfizer-BioNtech Covi...NEW YORK: Side effects such as pain and swelling at the shot spot, fatigue, headache, fever and chills are common for Moderna and Pfizer-BioNtech Covi... Common side effects of Moderna and Pfizer-BioNtech Covid vaccines, ways to deal with them: Media