![]() It was blood clots with low platelets ( thrombosis with thrombocytopenia syndrome, or TTS). There was a potential cause-and-effect relationship between the J&J/Janssen COVID-19 vaccine and a rare and serious adverse event.Cases of myocarditis and pericarditis have also been reported in people who received Novavax COVID-19 vaccine.The rare risk may be further reduced with a longer interval between the first and second dose. There is a rare risk of myocarditis and pericarditis associated with mRNA COVID-19 vaccination, mostly among males ages 12–39 years.Severe allergic reactions to vaccines are rare but can happen. ![]() Side effects throughout the body (such as fever, chills, tiredness, and headache) are more common after the second dose of a Pfizer-BioNTech, Moderna, or Novavax COVID-19 vaccine.Sometimes they may affect a person’s ability to do daily activities. Side effects that happen within 7 days of getting vaccinated are common but are mostly mild.Evidence from the hundreds of millions of COVID-19 vaccines already administered in the United States, and the billions of vaccines administered globally, demonstrates that they are safe and effective. The vaccine may also contain very small amounts of ingredients from the manufacturing stage, which can be found in the EUA Fact Sheet.ĬOVID-19 vaccines have undergone-and will continue to undergo-the most intensive safety monitoring in U.S. Work together to help keep the vaccine molecules stable while the vaccine is manufactured, shipped, and stored until it is ready to be given to a vaccine recipient. Sodium dihydrogen phosphate monohydrate.Potassium dihydrogen phosphate (common food salt).Disodium hydrogen phosphate heptahydrate.PurposeFacilitates activation of the cells of the innate immune system. ![]() Work together to help the recombinant spike protein enter cells.įraction-A and Fraction-C of Quillaja saponaria Molina extract
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