
{"id":5335,"date":"2021-06-09T12:47:21","date_gmt":"2021-06-09T12:47:21","guid":{"rendered":"https:\/\/aboutsmallruminants.com\/?p=5335"},"modified":"2026-05-13T07:12:42","modified_gmt":"2026-05-13T07:12:42","slug":"efficacia-vaccino-chlamydia-abortus","status":"publish","type":"post","link":"https:\/\/aboutsmallruminants.com\/it\/efficacia-vaccino-chlamydia-abortus\/","title":{"rendered":"Valutazione dell&#8217;efficacia dell&#8217;ultimo vaccino inattivato immesso in commercio contro chlamydia abortus"},"content":{"rendered":"<div class=\"intro-text\"><strong><em>Chlamydia abortus<\/em> \u00e8 l&#8217;agente eziologico dell&#8217;aborto enzootico ovino (AEO), una malattia di grande rilevanza sul piano economico in tutto il mondo. Nel 2019, \u00e8 stato immesso in commercio un nuovo vaccino inattivato contro l&#8217;AEO: INMEVA. In quest&#8217;articolo, riferiamo i risultati di uno studio pubblicato recentemente sulla prestigiosa rivista scientifica Frontiers in Veterinary Science, che si \u00e8 proposto di valutare l&#8217;efficacia e la sicurezza di questo vaccino.<br \/>\n<\/strong><\/div>\n<p>&nbsp;<\/p>\n<h2>Il patogeno<\/h2>\n<p><a href=\"https:\/\/aboutsmallruminants.com\/it\/patogeni-aborti-pecore-capre-chlamydia-salmonella\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Chlamydia abortus<\/em><\/a> \u00e8 la principale causa di <strong>aborto nei piccoli ruminanti<\/strong>. I segni clinici sono: aborto alla fine della gestazione, mortalit\u00e0 neonatale, parto prematuro o nascita di agnelli gracili.<\/p>\n<blockquote class=\"pullquote align-center\"><p><strong><span style=\"font-size: 20pt;\">\u201cChlamydia abortus \u00e8 una delle cause principali di aborto nei piccoli ruminanti in tutto il mondo, con perdite economiche significative\u201d<\/span><\/strong><\/p><\/blockquote>\n<p>Questa patologia si diffonde facilmente durante l&#8217;agnellatura, mantenendo il <strong>rischio di infezione<\/strong> nel gregge.<\/p>\n<p><a href=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/efficacy-vaccine-against-enzootic-abortion.jpg\"><img decoding=\"async\" class=\"size-full wp-image-5301 aligncenter\" src=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/efficacy-vaccine-against-enzootic-abortion.jpg\" alt=\"\" width=\"652\" height=\"367\" srcset=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/efficacy-vaccine-against-enzootic-abortion.jpg 652w, https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/efficacy-vaccine-against-enzootic-abortion-300x169.jpg 300w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>Perch\u00e9 \u00e8 stato necessario questo studio?<\/h2>\n<p>La <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30322529\/\" target=\"_blank\" rel=\"noopener noreferrer\">sicurezza dei vaccini vivi attenuati<\/a> \u00e8 stata recentemente messa in dubbio dalla <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0264410X10006729\" target=\"_blank\" rel=\"noopener noreferrer\">comunit\u00e0 scientifica<\/a>; \u00e8 stato dimostrato che i vaccini inattivati inducono l&#8217;<strong>immunit\u00e0 negli ovini<\/strong>, ma la loro efficacia \u00e8 incerta, e che non sono in grado di ridurre lo shedding virale.<\/p>\n<blockquote class=\"pullquote align-center\"><p><strong><span style=\"font-size: 20pt;\">\u201cI vaccini in commercio contro l&#8217;AEO hanno evidenziato problemi a livello di sicurezza ed efficacia\u201d<\/span><\/strong><\/p><\/blockquote>\n<p>Per questo motivo \u00e8 stato condotto questo <a href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/fvets.2020.00593\/full\" target=\"_blank\" rel=\"noopener noreferrer\">studio<\/a> che ha valutato l&#8217;efficacia e la sicurezza di questo <a href=\"https:\/\/www.hipra.com\/portal\/it\/hipra\/animalhealth\/products\/detail\/inmeva\" target=\"_blank\" rel=\"noopener noreferrer\">nuovo vaccino inattivato, INMEVA<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<h2>Quali sono stati i risultati?<\/h2>\n<p>Per valutare l&#8217;<strong>efficacia<\/strong> di questo vaccino, sono stati confrontati i risultati ottenuti su due gruppi di pecore gravide, infettate sperimentalmente con <em>C. abortus<\/em>: un gruppo vaccinato e un gruppo di controllo (non vaccinato). Sono stati confrontati i dati relativi a segni clinici, comportamento, temperatura e peso degli agnelli.<\/p>\n<figure id=\"attachment_5317\" aria-describedby=\"caption-attachment-5317\" style=\"width: 652px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/laboratory-vaccine-against-enzootic-abortion.jpg\"><img decoding=\"async\" class=\"wp-image-5317 size-full\" src=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/laboratory-vaccine-against-enzootic-abortion.jpg\" alt=\"\" width=\"652\" height=\"367\" srcset=\"https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/laboratory-vaccine-against-enzootic-abortion.jpg 652w, https:\/\/aboutsmallruminants.com\/wp-content\/uploads\/2021\/06\/laboratory-vaccine-against-enzootic-abortion-300x169.jpg 300w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><figcaption id=\"caption-attachment-5317\" class=\"wp-caption-text\">Con il nuovo vaccino inattivato, siamo in grado di controllare l&#8217;AEO in modo efficace e sicuro.<\/figcaption><\/figure>\n<p>I risultati hanno evidenziato che nel gruppo vaccinato i segni clinici sono diminuiti del 75% e lo shedding virale del 55% rispetto al gruppo non vaccinato. Inoltre, un effetto positivo \u00e8 stato osservato sull&#8217;<strong>incremento ponderale degli agnelli<\/strong>.<\/p>\n<blockquote class=\"pullquote align-center\"><p><strong><span style=\"font-size: 20pt;\">\u201cI risultati confermano che INMEVA riduce i segni clinici e lo shedding virale\u201d<\/span><\/strong><\/p><\/blockquote>\n<p>In termini di sicurezza, non sono state osservate reazioni avverse nel gruppo vaccinato.<\/p>\n<p>&nbsp;<\/p>\n<h2>Conclusioni<\/h2>\n<p>Il <a href=\"https:\/\/aboutsmallruminants.com\/it\/vaccinazione-aborto-enzootico-ovino\/\" target=\"_blank\" rel=\"noopener noreferrer\">vaccino inattivato disponibile in commercio<\/a> INMEVA \u00e8 sicuro e mostra un <strong>livello soddisfacente di protezione<\/strong> contro <em>Chlamydia abortus<\/em>.<\/p>\n<p>Nello studio sono stati osservati i seguenti effetti del vaccino:<\/p>\n<p style=\"padding-left: 40px;\"><strong>\u25cf Riduzione dei segni clinici a livello riproduttivo.<\/strong><br \/>\n<strong>\u25cf Riduzione dello shedding clamidiale.<\/strong><br \/>\n<strong>\u25cf Minimizzazione della perdita ponderale negli agnelli.<\/strong><br \/>\n<strong>\u25cf Assenza di reazioni avverse.<br \/>\n<\/strong><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chlamydia abortus \u00e8 l&#8217;agente eziologico dell&#8217;aborto enzootico ovino (AEO), una malattia di grande rilevanza sul piano economico in tutto il mondo. Nel 2019, \u00e8 stato immesso in commercio un nuovo vaccino inattivato contro l&#8217;AEO: INMEVA. In quest&#8217;articolo, riferiamo i risultati di uno studio pubblicato recentemente sulla prestigiosa rivista scientifica Frontiers in Veterinary Science, che si [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":5317,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"source_name":"","source_url":"","via_name":"","via_url":"","override_template":"0","override":[{"template":"1","single_blog_custom":"","parallax":"1","fullscreen":"0","layout":"right-sidebar","sidebar":"default-sidebar","second_sidebar":"default-sidebar","sticky_sidebar":"1","share_position":"top","share_float_style":"share-monocrhome","show_share_counter":"1","show_view_counter":"1","show_featured":"1","show_post_meta":"1","show_post_author":"1","show_post_author_image":"1","show_post_date":"1","post_date_format":"default","post_date_format_custom":"Y\/m\/d","show_post_category":"1","show_post_reading_time":"0","post_reading_time_wpm":"300","show_zoom_button":"0","zoom_button_out_step":"2","zoom_button_in_step":"3","show_post_tag":"1","show_prev_next_post":"1","show_popup_post":"1","number_popup_post":"1","show_author_box":"0","show_post_related":"0","show_inline_post_related":"0"}],"override_image_size":"0","image_override":[{"single_post_thumbnail_size":"crop-500","single_post_gallery_size":"crop-500"}],"trending_post":"0","trending_post_position":"meta","trending_post_label":"Trending","sponsored_post":"0","sponsored_post_label":"Sponsored by","sponsored_post_name":"","sponsored_post_url":"","sponsored_post_logo_enable":"0","sponsored_post_logo":"","sponsored_post_desc":""},"jnews_primary_category":{"id":""},"footnotes":""},"categories":[37],"tags":[90],"class_list":["post-5335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-riproduttivo","tag-restricted"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Evaluation of a new inactivated vaccine against Ovine Enzootic Abortion<\/title>\n<meta name=\"description\" content=\"This study shows that the inactivated vaccine INMEVA is effective and safe against Ovine Enzootic Abortion. 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