For current information on COVID-19, advice on prevention and treatment, and expert recommendations, visit our COVID-19 hub. Who can get the booster: The Novavax booster protects against the original SARS CoV-2 virus and may not protect against recent Omicron subvariants. The FDA in May placed limits on the vaccine over concerns of rare side effects, including blood clots. Protein subunit vaccines contain harmless and purified pieces (proteins) of the virus, which have been specifically selected for their ability to trigger immunity. Protein subunit vaccines are already used to protect against other diseases, such as hepatitis B. In January, the New England Journal of Medicine (NEJM) published a study based on people 12 and older included in North Carolinas state vaccine registry data. AstraZeneca blood clot link increases importance of Novavax How long does it take to get COVID-19 test results? inflammation of the heart muscle (myocarditis) or inflammation of the lining outside the heart (pericarditis), which can result in breathlessness, palpitations or chest pain. Later data on effectiveness (the vaccine's performance when used in the real world) for adults showed that the protection from the mRNA two-dose primary series wanes over time; but booster doses bring the immune system back to robust levels. How well it works against variants: At the end of 2021, J&J announced that preliminary study results from South Africa showed a J&J booster to be 85% effective against hospitalization at a time when Omicron was the dominant variant in that country. British Man Died of Rare Blood Syndrome Linked to Bohumil 138 Reports and investigations of safety concerns show that Canada's vaccine safety monitoring system works. The study found the bivalent vaccine to be 58.7% effective against hospitalization compared to 25% for the monovalent one that preceded it; its effectiveness against infection was 61.8% compared to 24.9% for the monovalent. It is recommended that you receive the second dose of Nuvaxovid 3 weeks after your first dose to receive the full course of this vaccine. Although safe for most of the population, they have been linked to rare but potentially severe side effects, including heart inflammation and blood clots. For more information about taking Novavax and pregnancy, see the Novavax and pregnancy section above. What doctors wish patients knew about the Novavax COVID-19 Each dose contains 0.5 mL of the vaccine. In 2022, the Food and Drug Administration (FDA) issued an emergency use authorization (EUA) for Novavax. This includes any possible side effects not listed in this leaflet. This is a condition in which you have a low blood platelet count. If you have any further questions, ask your doctor, pharmacist or nurse. Novavax Says Its COVID-19 Vaccine Prevents Moderate to
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