A third dose of Pfizer Covid-19 vaccine has significantly improved protection from infection and serious illness among people aged 60 and older in Israel compared with those who received two shots, findings published by the health ministry show.

The data was presented at a meeting of a ministry panel of vaccination experts on Thursday and uploaded to its website on Sunday, though the full details of the study were not released.

Breaking down statistics from Israel's Gertner Institute and KI Institute, ministry officials said that among people aged 60 and over, the protection against infection provided from 10 days after a third dose was four times higher than after two doses.

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