Johnson and Johnson vaccine is 66 percent effective at preventing Covid-19 illness in phase 3 trial – Vox
The Johnson & Johnson vaccine doesn’t require a booster shot, circumventing the two-dose problems posed by its competitors. The company plans to seek FDA approval in early February.AaronP/Bauer-Griffin/GC Images via Getty Images
The level of protection, though, varied in different regions: 72 percent in the US, 66 percent in Latin America, and 57 percent in South Africa.