The BioNTech/Pfizer vaccine is less effective in halting the spread of the Delta variant than that of previous strains of coronavirus, according to a preliminary study by Israel’s health ministry.
Data collected over the past month suggest the vaccine is 64 per cent effective at preventing infection among those who are fully inoculated, the ministry has found. Efficacy against previous strains of the virus was estimated at 94 per cent.
However, the figures, first reported in the Ynet news portal, indicate the vaccine is 93 per cent effective against serious illness and hospitalisation.
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