{"id":10700,"date":"2021-12-13T15:44:43","date_gmt":"2021-12-13T15:44:43","guid":{"rendered":"https:\/\/www.africa-press.net\/mozambique\/all-news\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study"},"modified":"2021-12-13T15:52:54","modified_gmt":"2021-12-13T15:52:54","slug":"pfizer-course-has-23-efficacy-vs-omicron-in-sa-study","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study","title":{"rendered":"Pfizer course has 23% efficacy vs Omicron in SA study"},"content":{"rendered":"

Africa-Press – Mozambique. <\/strong><\/span>A two-shot course of Pfizer Inc.\u2019s vaccine has just 22.5% efficacy against symptomatic infection with the omicron variant, but can thwart severe disease, according to laboratory experiments in South Africa.<\/p>\n

Researchers at the Africa Health Research Institute in Durban issued additional data on a small study released earlier this week.<\/p>\n

The research considered blood plasma samples from 12 participants. Scientists found omicron resulted in about a 41-fold reduction in levels of neutralizing antibodies produced by people who had received two doses of the Pfizer-BioNTech SE shot, compared with the strain detected in China almost two years ago.<\/p>\n

This is \u201cessentially compromising the ability of the vaccine to protect against infection,\u201d said the team of scientists led by laboratory head Alex Sigal in a preprint released on Friday.<\/p>\n

There continues to be sufficient protection against severe disease, they said.<\/p>\n

The team this week was the first to show that the variant, found by scientists in South Africa and Botswana and announced on Nov. 25, could largely, but not totally, escape the antibodies produced by Pfizer\u2019s vaccine. Still, they said a booster shot could increase immunity. That\u2019s been backed up by studies carried out by Pfizer itself.<\/p>\n

Preliminary U.K. data released on Friday showed that boosters from AstraZeneca Plc and Pfizer\/BioNTech SE improve protection against the omicron variant to as much as 75% in the early days after the shot.<\/p>\n

For More News And Analysis About Mozambique<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Mozambique. A two-shot course of Pfizer Inc.\u2019s vaccine has just 22.5% efficacy against symptomatic infection with the omicron variant, but can thwart severe disease, according to laboratory experiments in South Africa. Researchers at the Africa Health Research Institute in Durban issued additional data on a small study released earlier this week. The research […]<\/p>\n","protected":false},"author":84,"featured_media":10699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,8,16],"tags":[233,281,283],"class_list":["post-10700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-community","category-homepage-english","category-twitter","tag-africa-press","tag-africa-press-mozambique","tag-mozambique"],"yoast_head":"\nPfizer course has 23% efficacy vs Omicron in SA study - Mozambique<\/title>\n<meta name=\"description\" content=\"A two-shot course of Pfizer Inc.\u2019s vaccine has just 22.5% efficacy against symptomatic infection with the omicron varian ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pfizer course has 23% efficacy vs Omicron in SA study\" \/>\n<meta property=\"og:description\" content=\"A two-shot course of Pfizer Inc.\u2019s vaccine has just 22.5% efficacy against symptomatic infection with the omicron varian ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\" \/>\n<meta property=\"og:site_name\" content=\"Mozambique\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AfricaPressTunisiaa\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-13T15:44:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-12-13T15:52:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/mozambique\/sites\/64\/2021\/12\/img-61b76b7300872.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"744\" \/>\n\t<meta property=\"og:image:height\" content=\"496\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditoren\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditoren\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"Pfizer course has 23% efficacy vs Omicron in SA study\",\"datePublished\":\"2021-12-13T15:44:43+00:00\",\"dateModified\":\"2021-12-13T15:52:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\"},\"wordCount\":250,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/mozambique\/sites\/64\/2021\/12\/img-61b76b7300872.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Mozambique\",\"Mozambique\"],\"articleSection\":[\"all news\",\"community\",\"homepage-english\",\"twitter\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\",\"url\":\"https:\/\/www.africa-press.net\/mozambique\/community\/pfizer-course-has-23-efficacy-vs-omicron-in-sa-study\",\"name\":\"Pfizer course has 23% efficacy vs Omicron in SA study - 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