{"id":243646,"date":"2021-10-06T07:49:46","date_gmt":"2021-10-06T07:49:46","guid":{"rendered":"https:\/\/www.thetruthseeker.co.uk\/?p=243646"},"modified":"2021-10-08T07:00:04","modified_gmt":"2021-10-08T07:00:04","slug":"effectiveness-of-pfizer-covid-19-vaccine-falls-below-50-percent-after-5-months-study","status":"publish","type":"post","link":"https:\/\/www.thetruthseeker.co.uk\/?p=243646","title":{"rendered":"Effectiveness of Pfizer COVID-19 Vaccine Falls Below 50 Percent After 5 Months: Study"},"content":{"rendered":"

Katabella Roberts \u2013 Epoch Times Oct 5, 2021<\/strong><\/h1>\n

The effectiveness of the Pfizer-BioNTech COVID-19 vaccine\u00a0falls below 50 percent after five months, according to a new study published in\u00a0The Lancet medical journal on Oct. 4.<\/p>\n

The study (pdf<\/a>), which was funded by Pfizer, aimed to\u00a0evaluate the overall variant-specific effectiveness of the\u00a0Pfizer-BioNTech vaccine against\u00a0CCP (Chinese Communist Party) virus<\/a> infections and COVID-19-related hospital admissions over time.<\/p>\n

Researchers\u00a0analyzed electronic health records of more than 3.4 million men and women\u00a0who were members of the health care organization Kaiser Permanente Southern California between\u00a0Dec. 14, 2020 and Aug. 8, 2021, and assessed the vaccine effectiveness up to six months after they were inoculated.<\/p>\n

They found that the Pfizer vaccine was 88 percent effective in the first month after\u00a0full vaccination\u00a0but\u00a0dropped to 47 percent effectiveness after five months.<\/p>\n

The vaccine was also found to be highly effective against the Delta variant, providing 93 percent effectiveness in the first month after full vaccination but declining to\u00a053 percent\u00a0after four months.<\/p>\n

By comparison, effectiveness against other non-Delta variants was 97 percent after a month and declined to 67 percent after four to five months, according to the study.<\/p>\n

Effectiveness against Delta-related hospital admission remained high at 93 percent for up to six months, the researchers said.<\/p>\n

Researchers said that the reduction in effectiveness was likely due to waning immunity over the period of time since the individual was given the second shot as opposed to\u00a0the Delta strain.<\/p>\n

\u201cOur results provide support for high effectiveness of BNT162b2 against hospital admissions up until around six months after being fully vaccinated, even in the face of widespread dissemination of the Delta variant,\u201d the researchers wrote.<\/p>\n

\u201cReduction in vaccine effectiveness against SARS-CoV-2 infections over time is probably primarily due to waning immunity with time rather than the Delta variant escaping vaccine protection.\u201d<\/p>\n

\u201cOur results reiterate in a real-world U.S. setting that vaccination with\u00a0[the Pfizer-BioNTech COVID-19 vaccine] remains an essential tool for preventing COVID-19, especially COVID-19-associated hospital admissions, caused by all current variants of concern,\u201d they added.<\/p>\n

The latest Pfizer-funded study comes one day after a separate BioRxiv study<\/a> published on Monday that found that antibody levels generated by two shots of the Pfizer-BioNTech vaccine can undergo up to a 10-fold decrease seven months following the second vaccination.<\/p>\n

The research, which is yet to be peer reviewed, noted that the\u00a0drop in antibody levels will compromise the body\u2019s ability to defend itself against COVID-19 if the individual becomes infected.<\/p>\n

The study focused on 56 healthy participants who had received two doses of the Pfizer-BioNTech vaccine. The participants\u2019 blood was tested once after receiving the second vaccination and once again after six months.<\/p>\n

Researchers suggested administering a third booster shot<\/a> as a measure to improve vaccine efficacy.<\/p>\n

Both studies reiterate findings from Pfizer and BioNTech<\/a>\u00a0that were released in July showing that vaccine effectiveness dropped\u00a0from 96 percent to 84 percent over six months.<\/p>\n

The Pfizer-BioNTech vaccine is the most widely used in the United States. More than 226 million doses have been administered as of Sept. 30, versus 151 million Moderna shots and 15 million from Johnson & Johnson.<\/p>\n

Tammy Hung contributed to this report.<\/em><\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Expect calls for more booster vaccine shots to follow. As happened in Israel recently <\/p>\n","protected":false},"author":39262,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[105],"tags":[],"class_list":["post-243646","post","type-post","status-publish","format-standard","hentry","category-coronavirus"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/243646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/users\/39262"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=243646"}],"version-history":[{"count":2,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/243646\/revisions"}],"predecessor-version":[{"id":243677,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/243646\/revisions\/243677"}],"wp:attachment":[{"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=243646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=243646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetruthseeker.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=243646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}