Novavax COVID-19 vaccine
vaccine against COVID-19

The Novavax COVID-19 vaccine, sold under the brand names Nuvaxovid and Covovax, among others, is a subunit COVID-19 vaccine developed by Novavax and the Coalition for Epidemic Preparedness Innovations.
Updated versions of the vaccine have been developed to provide coverage against the Omicron variant, with different formulas for 2023–2024 (containing a recombinant spike protein from lineage XBB.1.5) and 2024–2025 (containing recombinant spike protein from lineage JN.1).
Medical uses
The Novavax COVID‑19 vaccine is indicated for active immunization to prevent COVID‑19 caused by SARS-CoV-2.
In the US, Nuvaxovid is indicated for active immunization to prevent COVID‑19 caused by SARS-CoV-2 in adults aged 65 years of age and older. Nuvaxovid is also indicated for individuals aged 12 through 64 years of age who have at least one underlying condition that puts them at high risk for severe outcomes from COVID-19.
Efficacy
In December 2021, Novavax reported that its phase III trial showed the vaccine achieved its primary endpoint of preventing infection at least seven days after the second dose. Overall efficacy against different SARS-CoV-2s was 90.4% and efficacy against moderate-to-severe disease was 100%.
A vaccine is generally considered effective if the estimate is ≥50% with a >30% lower limit of the 95% confidence interval. Efficacy is closely related to effectiveness, which is generally expected to slowly decrease over time.
Side effects
The most common side effects include fever, headache, nausea, muscle and joint pain, tenderness and pain at the injection site, tiredness, and feeling unwell.
The public source identifies “Novavax COVID-19 vaccine” as vaccine against COVID-19. This brief keeps that definition visible, then builds a research path around Novavax, COVID-19 and vaccine.
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This entry incorporates text from “Novavax COVID-19 vaccine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.