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Al-Marsad Journal – Agencies: A study conducted on medical teams at an Israeli hospital found that the first dose of the “Pfizer” corona vaccine was 85% effective in preventing the virus.
These findings would spark controversy over the recommended two-dose vaccination plan, as governments seek to increase vaccine distribution.
The results that Sheba Medical Center concluded, compared to an efficiency of around 95% in the two-dose vaccination system, separated by 21 days, with the vaccine that Pfizer developed in cooperation with the German company Biontech.
The study, which will be published in the medical journal “Lancet”, comes a day after Canadian researchers reported postponing the second dose of the “Pfizer” vaccine, due to the high level of protection provided by the first dose, so that more can be vaccinated.
The researchers said the first dose of the vaccine had an efficacy rate of 92.6%, based on a review of documents submitted by the manufacturer from the final stage human trials to the Food and Drug Administration. American last December, according to Reuters.
The Food and Drug Administration said at the time that data obtained from these experiments indicated that the vaccine had begun to provide a measure of protection for those who received the first dose, but that more data was needed to assess. single dose use.
For its part, Pfizer said that “alternative vaccination schedules have not yet been evaluated”, considering that the decision “is in the hands of the health authorities”.
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