{"id":208251,"date":"2025-04-26T10:28:09","date_gmt":"2025-04-26T10:28:09","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=208251"},"modified":"2025-04-26T10:28:11","modified_gmt":"2025-04-26T10:28:11","slug":"attenuated-vaccines-typically-cause-a-stronger-immune-response-because","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/26\/attenuated-vaccines-typically-cause-a-stronger-immune-response-because\/","title":{"rendered":"Attenuated vaccines typically cause a stronger immune response because"},"content":{"rendered":"\n<p>Attenuated vaccines typically cause a stronger immune response because<br>they are given to people with a weakened immune system.<br>the pathogens used in these vaccines are extremely virulent.<br>large numbers of pathogens are used in them.<br>they are given to people who have a very strong immune system.<br>the pathogen can still multiply in the host.<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is: <strong>the pathogen can still multiply in the host<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>Attenuated vaccines, also known as <strong>live-attenuated vaccines<\/strong>, use a version of the living pathogen that has been <strong>weakened<\/strong> in the laboratory. Although the pathogen is weakened so it does not cause disease in healthy individuals, it is still <strong>alive<\/strong> and capable of <strong>limited replication<\/strong> in the body. This ability to replicate \u2014 even at a low level \u2014 is what helps stimulate a <strong>stronger and longer-lasting immune response<\/strong> compared to vaccines made with killed (inactivated) pathogens or isolated parts of the pathogen.<\/p>\n\n\n\n<p>When the attenuated pathogen enters the host, it behaves similarly to a natural infection but without causing full-blown illness. As the weakened pathogen multiplies, it triggers the immune system to respond as if it were encountering the real infection. This includes activating both the <strong>humoral immune response<\/strong> (production of antibodies by B cells) and the <strong>cell-mediated immune response<\/strong> (activation of T cells). These multiple layers of immune activation often result in <strong>stronger immunity<\/strong> and <strong>longer-lasting protection<\/strong>, sometimes even for life with just one or two doses.<\/p>\n\n\n\n<p>It is important to note that <strong>attenuated vaccines are generally not given to people with weakened immune systems<\/strong> (such as those with HIV\/AIDS, cancer patients receiving chemotherapy, or organ transplant recipients) because even a weakened pathogen could potentially cause serious illness in those individuals. This rules out the choices about giving them to people with weak or strong immune systems as the reason for a stronger immune response.<\/p>\n\n\n\n<p>Examples of live-attenuated vaccines include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Measles, Mumps, and Rubella (MMR) vaccine<\/li>\n\n\n\n<li>Varicella (chickenpox) vaccine<\/li>\n\n\n\n<li>Yellow fever vaccine<\/li>\n<\/ul>\n\n\n\n<p>In short, because <strong>the pathogen in attenuated vaccines can still multiply to a limited degree<\/strong>, the immune system gets a more &#8220;realistic&#8221; practice run, leading to <strong>strong, effective, and long-term immunity<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Attenuated vaccines typically cause a stronger immune response becausethey are given to people with a weakened immune system.the pathogens used in these vaccines are extremely virulent.large numbers of pathogens are used in them.they are given to people who have a very strong immune system.the pathogen can still multiply in the host. The correct answer and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-208251","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=208251"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208251\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}