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The study, which is a collaboration between the UNC-Chapel Hill and the North Carolina Department of Health and Human Services, examined data on COVID-19 vaccination history and health outcomes for 10.6 million North Carolina residents between December 2020 and September 2021. The study results were
By Ralph Ellis May 25, 2021 -- A study found that two doses of the Pfizer/BioNTech or the Astra/Zeneca vaccine protect against the COVID-19 variant first detected in India -- as well as the variant first found in the United Kingdom. The study emphasized the need for two doses, saying one dose of the vaccines provided much less protection. The Public Health England study looked at health data from 1,054 people of different ages and ethnicities in April and May. The study said the Pfizer vaccine was 88% effective against the B.1.617.2 variant, first found in India, 2 weeks after the seco...