從理論上講，這應該是最安全的疫苗。臨試證明保護效果與mRNA疫苗相近，對流行的幾種變異株也有效

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回答: 重組蛋白疫苗NOVAVAX 由 zaocha2002 於 2021-06-27 02:58:01

https://www.nytimes.com/interactive/2020/health/novavax-covid-19-vaccine.html

How the Novavax Vaccine Works

The Maryland-based company Novavax has developed a protein-based coronavirus vaccine called NVX-CoV2373. In March the company announced an efficacy rate of 96 percent against the original coronavirus, 86 percent against the B.1.1.7 variant and 49 percent against the B.1.351 variant.

Coronavirus Proteins

The SARS-CoV-2 virus is studded with proteins that it uses to enter human cells. These so-called spike proteins make a tempting target for potential vaccines and treatments.

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https://www.nytimes.com/2021/06/14/health/covid-vaccine-novavax.html

Novavax Offers U.S. a Fourth Strong Covid-19 Vaccine

By Carl Zimmer

June 14, 2021

Novavax, a small American company buoyed by lavish support from the U.S. government, announced on Monday the results of a clinical trial of its Covid-19 vaccine in the United States and Mexico, finding that its two-shot inoculation provides potent protection against the coronavirus.

In the 29,960-person trial, the vaccine demonstrated an overall efficacy of 90.4 percent, on par with the vaccines made by Pfizer-BioNTech and Moderna, and higher than the one-shot vaccine from Johnson & Johnson. The Novavax vaccine showed an efficacy of 100 percent at preventing moderate or severe disease.

Despite these impressive results, the vaccine’s future in the United States is uncertain and it might be needed more in other countries. Novavax says it may not seek emergency authorization from the Food and Drug Administration until the end of September. And with a plentiful supply of three other authorized vaccines, it’s possible that the agency may tell Novavax to apply instead for a full license — a process that could require several extra months.

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https://www.theatlantic.com/health/archive/2021/06/novavax-now-best-covid-19-vaccine/619276/

The mRNA Vaccines Are Extraordinary, but Novavax Is Even Better

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