South Africa finds J&J vaccine protects 71% of Delta
Date 07 Aug 2021 time 12:30
South African trial finds J&J vaccine protects against 71% of Delta strains.
South Africa’s Ministry of Health has released the results of the vaccine’s efficacy test. Johnson&Johnson It was found to be 71% effective in preventing hospitalizations and 96% mortality, and may remain effective for up to 8 months.
But it was less effective against the first beta strain found in South Africa was 67% protective because this strain dodges immunity better than the Delta species.
The trial was conducted on nearly 480,000 South African health workers who were at high risk of contracting Covid-19 between Feb and May. This is the world’s first real-world test of vaccine efficacy against Delta strains.
Glenda Gray, one of the research team and chairman of the South African Council for Medical Research (SAMRC), said: “This research shows that a booster shot is not yet necessary.”
Photo by Frederic J. BROWN / AFP
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