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Two doses of either the Pfizer/BioNTech or Oxford/AstraZeneca vaccine offer similar protection against coronavirus as natural immunity after infection, new research suggests. None of the 1,456 healthcare workers at Oxford University Hospitals (OUH) NHS Foundation Trust who had received two vaccines had a symptomatic infection when followed up more than 14 days after their second vaccination. The study saw the same high level of protection in unvaccinated healthcare workers who had contracted Covid-19 naturally. They had 98% fewer symptomatic infections than unvaccinated individuals who had not been infected before, researchers say. Most of the healthcare workers in the study had only received one vaccine to date.

United kingdomKatie jefferyOxford astrazenecaDavid eyreNuffield department of medicineBig data instituteOxford biomedical research centreUniversity of oxfordNuffield departmentBiomedical researchPopulation healthஒன்றுபட்டது கிஂக்டம்கேடீ ஜெஃப்பரிடேவிட் கண்நுஃபையீல்ட் துறை ஆஃப் மருந்துபெரியது தகவல்கள் நிறுவனம்