Researchers analyzed results from thousands of COVID-19 tests carried out each week as part of hospital screenings of healthcare staff in Cambridge, eastern England.<\/p>\n
\u201cOur findings show a dramatic reduction in the rate of positive screening tests among asymptomatic healthcare workers after a single dose of the Pfizer-BioNTech vaccine,\u201d said Nick Jones, an infectious diseases specialist at Cambridge University Hospital, who co-led the study.<\/p>\n
After separating the test results from unvaccinated and vaccinated staff, Jones\u2019 team found that 0.80 percent tests from unvaccinated healthcare workers were positive.<\/p>\n
This compared with 0.37 percent of tests from staff less than 12 days post-vaccination – when the vaccine\u2019s protective effect is not yet fully established – and 0.20 percent of tests from staff at 12 days or more post-vaccination.<\/p>\n
The study and its results have yet to be independently peer-reviewed by other scientists, but were published online as a preprint on Friday.<\/p>\n
This suggests a four-fold decrease in the risk of asymptomatic COVID-19 infection amongst healthcare workers who have been vaccinated for more than 12 days, and 75 percent protection, said Mike Weekes, an infectious disease specialist at Cambridge University\u2019s department of medicine, who co-led the study.<\/p>\n
The level of asymptomatic infection was also halved in those vaccinated for less than 12 days, he said.<\/p>\n
Britain has been rolling out vaccinations with both the Pfizer COVID-19 shot and one from AstraZeneca since late December 2020.<\/p>\n
\u201cThis is great news \u2013 the Pfizer vaccine not only provides protection against becoming ill from SARS-CoV-2, but also helps prevent infection, reducing the potential for the virus to be passed on to others,\u201d Weeks said. \u201cBut we have to remember that the vaccine doesn\u2019t give complete protection for everyone.\u201d<\/p>\n
Key real-world data published on Wednesday from Israel, which has conducted one of the world\u2019s fastest rollouts of Pfizer\u2019s COVID-19 vaccine, showed that two doses of the Pfizer shot cut symptomatic COVID-19 cases by 94 percent across all age groups, and severe illnesses by nearly as much.<\/p>\n
Published: 26 February ,2021: 02:12 PM GST
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A single dose of the Pfizer COVID-19 vaccine developed in partnership with BioNTech could significantly reduce the risk of transmission after a single dose, results of a UK study found on Friday. Researchers analyzed results from thousands of COVID-19 tests carried out each week as part of hospital screenings of healthcare staff in Cambridge, eastern …<\/p>\n","protected":false},"author":1,"featured_media":2865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-2864","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-30"],"_links":{"self":[{"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/posts\/2864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2864"}],"version-history":[{"count":1,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/posts\/2864\/revisions"}],"predecessor-version":[{"id":2866,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/posts\/2864\/revisions\/2866"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=\/wp\/v2\/media\/2865"}],"wp:attachment":[{"href":"https:\/\/euroarab-int.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/euroarab-int.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}