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<strong>A new comprehensive Israeli study has found that a fourth Covid-19 vaccine dose triples the protection against severe illness in people aged 60 or above, compared to a three-dose protection, the Israeli Health Ministry said.</strong></p>
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On Tuesday, the ministry said that the study published in the New England Journal of Medicine, was conducted by it along with three leading Israeli universities and the Sheba Medical Center, Israel&#39;s largest hospital, Xinhua news agency reported.</p>
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Using the ministry&#39;s database, the researchers extracted data on 1,252,331 persons aged 60 or above and eligible for a fourth dose.</p>
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It was conducted when the Omicron variant of SARS-CoV-2 was predominant, between January 10 and March 2.</p>
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Except for the three-fold lower severe illness rate among those vaccinated with the fourth dose, it was found that the protection did not decline throughout the study&#39;s eight-week period.</p>
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The rate of verified Covid cases among these people was twice as low as those who received the third dose, but protection against confirmed infection appeared short-lived, according to the study.</p>
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