Novavax releases optimistic trial results

More good vaccine news this week: Novavax, the current candidate using a recombinant protein method, released results from trials in the United Kingdom and South Africa, and they look good. Here’s the breakdown:

  • 100% effective against hospitalization and death across all regions tested
  • 96.4% effective against symptomatic disease in the “original strain”
  • 86.3% effective against symptomatic B.1.1.7
  • 48.6% effective against symptomatic Covid-19 in South Africa (where B.1.351 is the predominant strain)

It should be noted that the UK trial was a full phase 3, while the South African trial was a smaller phase 2b trial—so we have less information for South Africa. There’s also currently a 30,000-person trial happening in the United States and Mexico which should shed more light on what this vaccine can do. But for now, these results are super encouraging.

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