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Pfizer Covid vaccine up to 85 percent effective after first dose according to study

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The Pfizer/BiNTech Covid vaccine was tested for efficacy in research conducted by the Sheba Medical Centre, Israel’s largest hospital. The findings have been published in the Lancet medical journal. The hospital assessed the effectiveness of the first dose of the Pfizer/BioNTech vaccine among 7,000 of its healthcare employees.

The workers each received their first dose in January and an 85 percent reduction of clinical COVID-19 between 15 and 28 days after the jab was observed.

Efficacy was also observed in asymptomatic patients.

The study found all infections, including asymptomatic, were reduced by 75 percent after the first dose.

“This is first real-world evidence of effectiveness that shows up after the first dose of the vaccine,” Professor Eyal Leshem, an infectious disease expert and director of Sheba’s Institute for Travel and Tropical Medicine, told Sky News.



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