The new Novavax vaccine is just 49% effective vs. the new South Africa coronavirus strain B.1.351 which emerged last October and was just reported in two cases in South Carolina.
Johnson & Johnson's new vaccine is just 57% effective against it.
Moderna says its vaccine is "far less effective against the South Africa strain".
Pfizer's vaccine appears to be the most robust of them all, "only slightly less effective against the South Africa variant compared with the others."
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