{"id":986,"date":"2021-07-25T12:08:22","date_gmt":"2021-07-25T19:08:22","guid":{"rendered":"https:\/\/blog.medcram.com\/?p=986"},"modified":"2022-02-06T22:34:40","modified_gmt":"2022-02-07T05:34:40","slug":"covid-19-updates-breaking-down-the-delta-variant-and-immunity-from-previous-infection-vs-covid-19-vaccines","status":"publish","type":"post","link":"https:\/\/blog.medcram.com\/covid-19\/covid-19-updates-breaking-down-the-delta-variant-and-immunity-from-previous-infection-vs-covid-19-vaccines\/","title":{"rendered":"COVID-19 Updates &#8212; Breaking Down the Delta Variant and Immunity from Previous Infection vs COVID-19 Vaccines"},"content":{"rendered":"<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/hXV7i1yxu6c\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/5RWGh19yTXw\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Delta is the latest COVID-19 variant to capture global attention, as new research emerges about its transmission rate and responsiveness to vaccines and natural immunity. Professor Roger Seheult, MD, breaks down what we know about the Delta variant and how it compares to other SARS-CoV-2 mutations.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Delta Variant and Vaccines<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In our <\/span><a href=\"https:\/\/youtu.be\/hXV7i1yxu6c\"><span style=\"font-weight: 400;\">130th COVID-19 update<\/span><\/a><span style=\"font-weight: 400;\">, Dr. Seheult summarizes information on viral variants and mutations in general, then focuses on the Delta variant, also known as variant B.1.617.2. <\/span><a href=\"https:\/\/www.yalemedicine.org\/news\/5-things-to-know-delta-variant-covid\"><span style=\"font-weight: 400;\">Initial data on the Delta variant<\/span><\/a><span style=\"font-weight: 400;\">, first discovered in India, shows that it is more contagious than the original SARS-CoV-2 virus, and <\/span><a href=\"https:\/\/spiral.imperial.ac.uk\/bitstream\/10044\/1\/89629\/10\/react1_r12_preprint_final.pdf\"><span style=\"font-weight: 400;\">this pre-print study<\/span><\/a><span style=\"font-weight: 400;\"> from the Imperial College London showed an increased prevalence among younger people, aged 5-49. While the UK variant (B.1.1.7) has recently been the most common variant in places like the UK and United States, the increasing number of Delta variant cases are quickly outpacing those of B.1.1.7.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Next, Dr. Seheult focuses on data surrounding the efficacy of vaccines &#8212; specifically, Pfizer-BioNTech, Moderna, Oxford-AstraZeneca, and Johnson &amp; Johnson &#8212; against the Delta variant, in terms of infection and hospitalization. He reviews various studies from <\/span><a href=\"https:\/\/spiral.imperial.ac.uk\/bitstream\/10044\/1\/89629\/10\/react1_r12_preprint_final.pdf\"><span style=\"font-weight: 400;\">the UK<\/span><\/a><span style=\"font-weight: 400;\">, <a href=\"https:\/\/www.medrxiv.org\/content\/10.1101\/2021.06.28.21259420v1.full.pdf\">Canada<\/a>, <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC7685332\/\"><span style=\"font-weight: 400;\">Israel<\/span><\/a><span style=\"font-weight: 400;\">, and <\/span><a href=\"https:\/\/www.thelancet.com\/journals\/lancet\/article\/PIIS0140-6736(21)01358-1\/fulltext\"><span style=\"font-weight: 400;\">Scotland<\/span><\/a><span style=\"font-weight: 400;\">. Watch the full video <\/span><a href=\"https:\/\/youtu.be\/hXV7i1yxu6c\"><span style=\"font-weight: 400;\">here<\/span><\/a><span style=\"font-weight: 400;\"> for details on each vaccine and how they fared against the Delta variant.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Previous COVID-19 Infection &amp; Vaccines Versus the Delta Variant<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In our <\/span><a href=\"https:\/\/youtu.be\/5RWGh19yTXw\"><span style=\"font-weight: 400;\">131st COVID-19 update<\/span><\/a><span style=\"font-weight: 400;\">, Dr. Seheult discusses the question: does natural immunity offer sufficient protection against the Delta variant? Various studies, including <\/span><a href=\"https:\/\/www.medrxiv.org\/content\/10.1101\/2021.06.01.21258176v3.full.pdf\"><span style=\"font-weight: 400;\">this paper from the Cleveland Clinic<\/span><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/jamanetwork.com\/journals\/jama\/fullarticle\/2781112\"><span style=\"font-weight: 400;\">this study from Qatar<\/span><\/a><span style=\"font-weight: 400;\">, suggest that natural immunity from a previous COVID-19 infection offers some immunity from COVID-19, but, notably, this data was collected <\/span><i><span style=\"font-weight: 400;\">before<\/span><\/i><span style=\"font-weight: 400;\"> the Delta variant became an issue.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Another <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41586-021-03777-9\"><span style=\"font-weight: 400;\">pre-print study<\/span><\/a><span style=\"font-weight: 400;\">, published in Nature, however, highlighted the ineffectiveness of monoclonal antibody treatments, such as Bamlanivimab, against the Delta variant. In addition, this study showed that unsurprisingly, previously uninfected (with no natural immunity), unvaccinated people are at the highest risk of serious infection from the Delta variant. For doctors and other frontline healthcare workers treating COVID-19 patients, Dr. Seheult recommends this MedCram course on using <\/span><a href=\"https:\/\/www.medcram.com\/courses\/Lung-Ultrasound-In-COVID-19\"><span style=\"font-weight: 400;\">lung ultrasounds for COVID-19<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Stay Tuned for More COVID-19 Updates\u00a0<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Our COVID-19 videos are always available for <\/span><i><span style=\"font-weight: 400;\">free <\/span><\/i><span style=\"font-weight: 400;\">(and ad-free) at<\/span><a href=\"https:\/\/www.medcram.com\/collections?category=covid-19-SARS-CoV-2\"> <span style=\"font-weight: 400;\">MedCram.com<\/span><\/a><span style=\"font-weight: 400;\">. In addition, check out our full library of courses and lectures on subjects ranging from<\/span> <a href=\"https:\/\/www.medcram.com\/courses\/medcram-reviews-hematology\"><i><span style=\"font-weight: 400;\">Hematology<\/span><\/i><\/a><span style=\"font-weight: 400;\"> to<\/span> <a href=\"https:\/\/www.medcram.com\/courses\/mechanical-ventilation-explained-clearly\"><i><span style=\"font-weight: 400;\">Mechanical Ventilation Explained Clearly<\/span><\/i><\/a><span style=\"font-weight: 400;\"> and many more!<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Meanwhile, you can find all of our COVID-19 videos compiled <\/span><a href=\"https:\/\/www.medcram.com\/collections?category=covid-19-SARS-CoV-2\"><span style=\"font-weight: 400;\">here<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>&nbsp; Delta is the latest COVID-19 variant to capture global attention, as new research emerges about its transmission rate and responsiveness to vaccines and natural immunity. Professor Roger Seheult, MD, breaks down what we know about the Delta variant and how it compares to other SARS-CoV-2 mutations.\u00a0 &nbsp; Delta Variant and Vaccines In our 130th&hellip;<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":5,"featured_media":988,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25,11,16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>COVID-19 Updates - Breaking Down the Delta Variant and Immunity from Previous Infection vs COVID-19 Vaccines - Medcram Blog<\/title>\n<meta name=\"description\" content=\"Delta is the latest COVID-19 variant to capture global attention, as new research emerges about its transmission rate and responsiveness to vaccines and natural immunity. Professor Roger Seheult, MD, breaks down what we know about the Delta variant and how it compares to other SARS-CoV-2 mutations.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.medcram.com\/covid-19\/covid-19-updates-breaking-down-the-delta-variant-and-immunity-from-previous-infection-vs-covid-19-vaccines\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"COVID-19 Updates - Breaking Down the Delta Variant and Immunity from Previous Infection vs COVID-19 Vaccines - Medcram Blog\" \/>\n<meta property=\"og:description\" content=\"Delta is the latest COVID-19 variant to capture global attention, as new research emerges about its transmission rate and responsiveness to vaccines and natural immunity. 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