{"id":14702,"date":"2025-07-17T16:22:22","date_gmt":"2025-07-17T21:22:22","guid":{"rendered":"https:\/\/www.voicesforvaccines.org\/?post_type=jtf_topics&p=14702"},"modified":"2025-07-31T18:22:47","modified_gmt":"2025-07-31T23:22:47","slug":"do-vaccines-confer-immunity","status":"publish","type":"jtf_topics","link":"https:\/\/www.voicesforvaccines.org\/es\/jtf_topics\/do-vaccines-confer-immunity\/","title":{"rendered":"Do vaccines confer immunity?"},"content":{"rendered":"
[vc_row source=”” text=”Clinical Trials” font_container=”tag:h2|text_align:left” use_theme_fonts=”yes” google_fonts=”font_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal” link=”” css=”.vc_custom_1708910874436{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;}”][vc_column][vc_row_inner][vc_column_inner][vc_custom_heading text=”The Claim:” font_container=”tag:h3|text_align:left” use_theme_fonts=”yes”][vc_column_text css=””]An old myth that is\u00a0recirculating<\/a>\u00a0claims that vaccines didn\u2019t cut death rates, that they hurt your immune system, making unvaccinated kids healthier, and that the CDC is hiding studies comparing vaccinated and unvaccinated people.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_custom_heading text=”The Facts:” font_container=”tag:h3|text_align:left” use_theme_fonts=”yes”][vc_column_text css=””]The\u00a0graphs that these claims rely on are\u00a0found\u00a0here<\/a>. They\u00a0show that\u00a0deaths<\/em>\u00a0had already drastically fallen before vaccines.\u00a0Cases<\/a>, on\u00a0the\u00a0other hand, didn\u2019t fall until vaccines were introduced. Smallpox eradication is a good example of zero cases meaning zero deaths, too.\u00a0Since the\u00a0worldwide effort<\/a>\u00a0to get rid of smallpox, there hasn\u2019t been a single case anywhere, which shows that vaccines stopped it.<\/p>\n

Anti-vaxxers claim that unvaccinated children are healthier than vaccinated children in myriad ways. They often cite some studies to try to back up those claims. However, all these studies suffer from a lot of the same fallacies. Many are simple surveys.<\/p>\n

Surveys are often victims of\u00a0self-selection bias<\/a>, or volunteer bias, in which participants can decide whether or not to participate in the study, along with\u00a0recall bias<\/a>\u00a0and\u00a0reporting bias<\/a>.
\nMany large studies in the real world have looked into whether children who get vaccines do worse than children who do not. The answer is no. One\u00a0Danish study<\/a>\u00a0followed more than 650,000 children for ten years and found that MMR vaccination did not cause autism, even in children who already had a sibling with autism.<\/p>\n

Another meta-analysis combined data on 1.2\u202fmillion children from five countries and came to the same conclusion for autism and every other long\u2011term health problem it examined. Studies from\u00a0Germany<\/a>, the\u00a0Philippines<\/a>, and several\u00a0U.S. health\u00a0systems<\/a>\u00a0show the same thing: the main difference is that vaccinated kids are protected from the diseases the vaccines are made to prevent.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"

Vaccines protect, not harm. Large studies show vaccinated kids are just as healthy\u2014plus they’re shielded from serious diseases. Here’s what the data say.<\/p>\n","protected":false},"parent":0,"template":"","jtf_topic_subjects":[199,218],"class_list":["post-14702","jtf_topics","type-jtf_topics","status-publish","hentry","jtf_topic_subjects-childhood-vaccines","jtf_topic_subjects-vaccine-safety","entry","no-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/14702","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\/14702\/revisions"}],"predecessor-version":[{"id":14715,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/14702\/revisions\/14715"}],"wp:attachment":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/media?parent=14702"}],"wp:term":[{"taxonomy":"jtf_topic_subjects","embeddable":true,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topic_subjects?post=14702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}