RIO DE JANEIRO, BRAZIL - Israel on Monday reported a decline in the effectiveness of Pfizer/BioNTech's Covid-19 vaccine in preventing infections and symptomatic illnesses but said it remains highly effective in preventing serious illnesses.
The decline coincided with the spread of the Delta variant and the end of social distancing restrictions in Israel.
The vaccine's effectiveness in preventing infections and symptomatic illnesses has fallen to 64% since June 6, the Health Ministry said. At the same time, the vaccine was 93% effective in preventing hospitalizations and serious illnesses caused by the coronavirus.
In the statement, the ministry . . .
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