“…A number of COVID-19 vaccines have been approved and are in human clinical trials in the United States as of October 27, 2020. 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 Covid-19 vaccine side effects and warnings are described as short-term side effects that were observed in leading vaccine trials 52 , 53 and post marketed vaccine administration and include: Injection site pain and redness 84%, Fatigue 63%, Myalgia, or muscle pain 14.8%, Arthralgia or joint pain 24%, Headache 55%, and Fever 14%. On December 8, 2020, the United Kingdom reported that two patients who were injected with Pfizer's recently approved coronavirus vaccine had to be treated for serious adverse reactions, which has led to warnings that those with “significant” allergies may not be able to get the vaccine.…”