{"id":11989,"date":"2025-03-13T21:38:22","date_gmt":"2025-03-14T02:38:22","guid":{"rendered":"https:\/\/www.voicesforvaccines.org\/?post_type=jtf_topics&#038;p=11989"},"modified":"2025-03-15T21:42:27","modified_gmt":"2025-03-16T02:42:27","slug":"are-childhood-vaccines-well-tested","status":"publish","type":"jtf_topics","link":"https:\/\/www.voicesforvaccines.org\/es\/jtf_topics\/are-childhood-vaccines-well-tested\/","title":{"rendered":"Are childhood vaccines well-tested?"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row source=&#8221;&#8221; text=&#8221;Clinical Trials&#8221; font_container=&#8221;tag:h2|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; google_fonts=&#8221;font_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal&#8221; link=&#8221;&#8221; css=&#8221;.vc_custom_1708910874436{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;}&#8221;][vc_column][vc_row_inner][vc_column_inner][vc_custom_heading text=&#8221;The Claim:&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text css=&#8221;&#8221;]In an episode of his\u00a0<a href=\"https:\/\/x.com\/TheChiefNerd\/status\/1897253167257280725\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/voicesforvaccines.us6.list-manage.com\/track\/click?u%3De17a65409cd8f13ba7e58cc97%26id%3D8dc280fd70%26e%3Dfc0735be13&amp;source=gmail&amp;ust=1742179045620000&amp;usg=AOvVaw24D7JwbjZlrPD_5hSa68-P\">new podcast<\/a>, in which he interviews former CDC director Dr. Robert Redfield, Del Bigtree questions vaccine safety by saying some vaccines, like Hepatitis B for newborns, weren\u2019t tested enough, didn\u2019t use placebo groups, may not be needed for all babies, and that forcing parents to vaccinate makes people trust vaccines less.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_custom_heading text=&#8221;The Facts:&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text css=&#8221;&#8221;]Vaccines go through many years of testing before they are approved, not just a few days. The Hepatitis B vaccine was tested on thousands of people before being given to newborns.<\/p>\n<p>The five-day monitoring claim mentioned in the video\u00a0relies on\u00a0<a href=\"https:\/\/www.voicesforvaccines.org\/science\/vaccinesafety\/\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/voicesforvaccines.us6.list-manage.com\/track\/click?u%3De17a65409cd8f13ba7e58cc97%26id%3Deb990ed0e0%26e%3Dfc0735be13&amp;source=gmail&amp;ust=1742179045620000&amp;usg=AOvVaw3kwbBCeSsNc4erkm1eHyk2\">package\u00a0insert data<\/a>, as opposed to actual clinical trial information. Vaccine inserts are legal documents and not medical or research documents. Looking at the actual\u00a0<a href=\"https:\/\/www.voicesforvaccines.org\/science\/vaccinesafety\/\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/voicesforvaccines.us6.list-manage.com\/track\/click?u%3De17a65409cd8f13ba7e58cc97%26id%3Dc23580a5fb%26e%3Dfc0735be13&amp;source=gmail&amp;ust=1742179045620000&amp;usg=AOvVaw0EPJbkLLEHQaUn75fciCgP\">clinical trial<\/a>\u00a0information for the\u00a0Hep\u00a0B\u00a0vaccine shows that the &#8220;five\u00a0days&#8221; were specifically for injection site non-serious adverse events (NSAEs). Researchers watched for serious events for the length of the study (5\u00a0months for that particular study), 14\u00a0days\u00a0for systemic\u00a0NSAEs (i.e., fevers), and five only\u00a0days\u00a0for the injection site NSAEs.<\/p>\n<p>Hep\u00a0B\u00a0infection can lead to chronic\u00a0Hep\u00a0B. Chronic\u00a0Hep\u00a0B\u00a0can last a lifetime and lead to serious illnesses such as cirrhosis and liver cancer. The younger you are when you get\u00a0hepatitis\u00a0B, the more likely it will become chronic. There is no cure for\u00a0hepatitis\u00a0B, but vaccines can prevent it.<\/p>\n<p>Placebo groups are often used in vaccine studies, but not always, especially when there is already strong evidence that a vaccine works and is safe. Instead of giving some babies a fake shot, scientists compare new vaccines to older, well-tested vaccines or study real-world data. This helps protect babies from diseases while still making sure vaccines are safe.<\/p>\n<p>The FDA and CDC do not approve vaccines based on guesses. The Hepatitis B vaccine was carefully studied in adults, children, and babies before being recommended for newborns.<\/p>\n<p>The widespread implementation of\u00a0Hep\u00a0B\u00a0vaccination programs, including the birth dose, has led to significant\u00a0<a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4550866\/\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/voicesforvaccines.us6.list-manage.com\/track\/click?u%3De17a65409cd8f13ba7e58cc97%26id%3D962c44d4a5%26e%3Dfc0735be13&amp;source=gmail&amp;ust=1742179045620000&amp;usg=AOvVaw2MbKEOBUiZTNsEtASquXw4\">reductions<\/a>\u00a0in\u00a0Hep\u00a0<wbr \/>B\u00a0worldwide. By immunizing newborns, the goal is to achieve a high vaccination coverage rate and create a population with decreased\u00a0Hep\u00a0B\u00a0transmission, ultimately reducing the burden of related diseases.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Are childhood vaccines well-tested? Del Bigtree questions Hep B vaccine safety, but research proves vaccines undergo rigorous trials and protect against disease.<\/p>\n","protected":false},"parent":0,"template":"","jtf_topic_subjects":[199,211,218],"class_list":["post-11989","jtf_topics","type-jtf_topics","status-publish","hentry","jtf_topic_subjects-childhood-vaccines","jtf_topic_subjects-hepatitis-b","jtf_topic_subjects-vaccine-safety","entry","no-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/11989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics"}],"about":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/types\/jtf_topics"}],"version-history":[{"count":1,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/11989\/revisions"}],"predecessor-version":[{"id":11992,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/11989\/revisions\/11992"}],"wp:attachment":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/media?parent=11989"}],"wp:term":[{"taxonomy":"jtf_topic_subjects","embeddable":true,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topic_subjects?post=11989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}