{"id":11559,"date":"2024-12-19T17:11:01","date_gmt":"2024-12-19T23:11:01","guid":{"rendered":"https:\/\/www.voicesforvaccines.org\/?post_type=jtf_topics&p=11559"},"modified":"2024-12-22T17:15:15","modified_gmt":"2024-12-22T23:15:15","slug":"were-polio-vaccines-properly-tested","status":"publish","type":"jtf_topics","link":"https:\/\/www.voicesforvaccines.org\/es\/jtf_topics\/were-polio-vaccines-properly-tested\/","title":{"rendered":"Were polio vaccines properly tested?"},"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=””]After a\u00a0New York Times<\/a>\u00a0article exposed Aaron Siri as the guy who petitioned to get a polio vaccine removed from the market, he\u00a0shot back with a long tweet<\/a>\u00a0claiming that IPV (inactivated polio vaccine) was approved without proper safety testing, uses risky production methods involving monkey kidney cells, doesn\u2019t stop the spread of polio, and that the FDA failed to ensure its safety before approval.[\/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=””]Several of Siri’s claims rely on\u00a0package\u00a0insert\u00a0data<\/a>, as opposed to actual clinical trial information.\u00a0Vaccine\u00a0inserts<\/a>\u00a0are legal documents and not medical or research documents. He repeats the oft recited claim that vaccines have only been tested for a short time without seeming to understand that the insert does not contain all the results of clinical trials, only what is required by regulations.<\/p>\n

Vero cells, first developed in 1962, are one of the\u00a0most common<\/a>\u00a0continuous cell line used\u00a0to make vaccines.\u00a0Siri claims that the “cells are susceptible to infection by dozens of viruses,” which is true, but that’s what makes them useful.\u00a0These cells can be infected by many different viruses, which is why they are so useful for producing vaccines like those for rabies, flu, and yellow fever.<\/p>\n

During the vaccine-making process, the cells are carefully cleaned and tested to make sure no harmful viruses end up in the vaccine. After weakening a virus in them, that virus is removed from the cell line. Vero cells are not cancerous, and they are not an ingredient in the vaccines themselves.<\/p>\n

One of Siri’s other complaints is that IPOL, an inactivated polio vaccine (IPV), does not stop transmission of the virus. IPOL does not prevent the virus from infecting the intestines the way the oral polio vaccine (OPV) does. Because polio is spread through an oral-fecal route, a person vaccinated with IPV will not get sick with polio, but can pass it through their intestines to others.<\/p>\n

However, IPOL does greatly reduce the amount of virus in the throat (called\u00a0pharyngeal virus shedding<\/a>). This helps lower the chances of spreading the virus to others. Unlike OPV, IPOL does not carry the risk of causing vaccine-associated paralytic poliomyelitis (VAPP), a rare condition linked to the oral vaccine.<\/p>\n

Additionally, IPV\u00a0has been proven effective in populations like in the\u00a0U.S.<\/a>\u00a0and in much of the world, where poliovirus has been eliminated.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"

Were polio vaccines properly tested? We break down Aaron Siri’s claims about IPV safety, production methods, and effectiveness, revealing the science behind vaccine testing and safety.<\/p>\n","protected":false},"parent":0,"template":"","jtf_topic_subjects":[198,218],"class_list":["post-11559","jtf_topics","type-jtf_topics","status-publish","hentry","jtf_topic_subjects-polio","jtf_topic_subjects-vaccine-safety","entry","no-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/11559","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\/11559\/revisions"}],"predecessor-version":[{"id":11562,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/11559\/revisions\/11562"}],"wp:attachment":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/media?parent=11559"}],"wp:term":[{"taxonomy":"jtf_topic_subjects","embeddable":true,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topic_subjects?post=11559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}