{"id":35587,"date":"2022-04-01T12:02:41","date_gmt":"2022-04-01T10:02:41","guid":{"rendered":"https:\/\/www.proquimia.com\/listeria-monocytogenes\/"},"modified":"2025-11-07T14:39:45","modified_gmt":"2025-11-07T13:39:45","slug":"listeria-monocytogenes","status":"publish","type":"post","link":"https:\/\/www.proquimia.com\/ca\/listeria-monocytogenes\/","title":{"rendered":"Listeriosi"},"content":{"rendered":"\r\n<div class=\"vce-row-container\" data-vce-boxed-width=\"true\">\r\n<div id=\"el-24511cfb\" class=\"vce-row vce-row--col-gap-30 vce-row-equal-height vce-row-content--top\" data-vce-do-apply=\"all el-24511cfb\">\r\n<div class=\"vce-row-content\" data-vce-element-content=\"true\">\r\n\r\n\r\n<div id=\"el-eeae276b\" class=\"vce-col vce-col--md-auto vce-col--xs-1 vce-col--xs-last vce-col--xs-first vce-col--sm-last vce-col--sm-first vce-col--md-last vce-col--lg-last vce-col--xl-last vce-col--md-first vce-col--lg-first vce-col--xl-first\">\r\n<div class=\"vce-col-inner\" data-vce-do-apply=\"border margin background el-eeae276b\">\r\n<div class=\"vce-col-content\" data-vce-element-content=\"true\" data-vce-do-apply=\"padding el-eeae276b\">\r\n\r\n\r\n<div class=\"vce-text-block\">\r\n<div id=\"el-25df0c5f\" class=\"vce-text-block-wrapper vce\" data-vce-do-apply=\"all el-25df0c5f\">\r\n\r\n<a href=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/listeriosis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16670\" src=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/listeriosis.jpg\" alt=\"listeriosis\" width=\"820\" height=\"270\" srcset=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/listeriosis.jpg 820w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/listeriosis-416x137.jpg 416w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/listeriosis-600x198.jpg 600w\" sizes=\"auto, (max-width: 820px) 100vw, 820px\" \/><\/a>\r\n\r\n<strong>La Listeriosi \u00e9s una infecci\u00f3 causada pel bacteri <\/strong><em>Listeria monocytogenes<\/em>. Els brots d'aquesta malaltia es relacionen generalment amb la ingesta d'aliments que contenen gran quantitat d'aquest bacteri.\r\n\r\nEs tracta d'una <strong>malaltia relativament poc freq\u00fcent<\/strong>, ja que la seva incid\u00e8ncia \u00e9s for\u00e7a baixa en comparaci\u00f3 amb altres malalties associades a microorganismes transmesos pels aliments.\r\n\r\nTot i aix\u00f2, la Listeriosi \u00e9s motiu d'especial inter\u00e8s i preocupaci\u00f3, perqu\u00e8 en la seva forma invasiva \u00e9s una malaltia greu, amb <strong>taxes de letalitat molt elevades<\/strong> (entre el 10% i el 30%). I \u00e9s que <em>Listeria monocytogenes<\/em> \u00e9s un patogen oportunista que gaireb\u00e9 sempre afecta la poblaci\u00f3 de risc, mentre que a la poblaci\u00f3 general la seva infecci\u00f3 no sol comportar desenvolupament de la malaltia.\r\n\r\n&nbsp;\r\n<table width=\"100%\">\r\n<tbody>\r\n<tr>\r\n<td>\r\n<h4><strong>Grups de risc:<\/strong><\/h4>\r\n- Dones embarassades\r\n\r\n- Nounats\r\n\r\n- Persones amb les defenses debilitades:\r\n\r\no Malalts cr\u00f2nics\r\n\r\no Persones d'edat avan\u00e7ada\r\n\r\no Persones sotmeses a determinats tractaments m\u00e8dics\r\n\r\n\u00b7 La probabilitat de contraure la malaltia \u00e9s unes 20 vegades m\u00e9s gran en les embarassades que en altres adults sans.\r\n\r\n\u00b7 Els pacients amb VIH\/sida tenen una probabilitat 300 vegades m\u00e9s gran de patir listeriosi que les persones amb un sistema immunitari normal.\r\n\r\n\u00b7 Persones m\u00e9s grans de 65 anys representen un 62% dels afectats totals, amb una mortalitat del 19%.\r\n\r\n&nbsp;<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h4><strong>Incid\u00e8ncia de la Listeriosi<\/strong><\/h4>\r\nLa taxa de Listeriosi humana a la Uni\u00f3 Europea el 2019 t\u00e9 una prevalen\u00e7a<strong> de 0,46 casos per cada 100.000 habitants <\/strong>(EFSA 2020).\r\n\r\nLa tend\u00e8ncia a la UE de casos confirmats de Listeriosi es va mantenir estable en els tres \u00faltims anys (2621 casos el 2019).\r\n\r\n&nbsp;\r\n\r\n<a href=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16664\" src=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis.png\" alt=\"casos reportados de listeriosis\" width=\"891\" height=\"734\" srcset=\"https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis.png 891w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-416x343.png 416w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-600x494.png 600w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-840x692.png 840w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-320x264.png 320w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-480x395.png 480w, https:\/\/www.proquimia.com\/wp-content\/uploads\/2019\/07\/casos-reportados-de-listeriosis-800x659.png 800w\" sizes=\"auto, (max-width: 891px) 100vw, 891px\" \/><\/a>\r\n\r\n&nbsp;\r\n\r\n<em>Trend in reported confirmed human <\/em><em>cases of listeriosis in the EU\/EEA, by month, 2009\u2013 2019<\/em>\r\n\r\nD'altra banda, les dades mundials (OMS 2018) mostren poca prevalen\u00e7a (0,01-0,1 casos per cada 100.000 persones), per\u00f2 una mortalitat molt alta (20 \u2013 30%) en persones sensibles.\r\n<h4><strong>Dosi infectiva<\/strong><\/h4>\r\nLa <strong>dosi infectiva no est\u00e0 determinada<\/strong> i dep\u00e8n de factors com el cep, la susceptibilitat de l'hoste (estat immunitari, edat,\u2026) o la matriu aliment\u00e0ria involucrada.\r\n\r\nSegons un model utilitzat per l'EFSA, el 92% dels casos de Listeriosi invasiva serien atribu\u00efbles a dosis superiors a 100.000 unitats formadores de col\u00f2nies (UFC) per part.\r\n\r\nPer tant, si suposem una mida mitjana de porci\u00f3 de 50 g, aix\u00f2 correspondria a una concentraci\u00f3 de <em>Listeria monocytogenes<\/em> per sobre de 2.000 UFC\/g en el moment del consum.\r\n\r\nDe tota manera, \u00e9s probable que menys de 1.000 UFC\/g puguin causar malaltia en individus susceptibles.\r\n<h4><strong>Per\u00edode d'incubaci\u00f3<\/strong><\/h4>\r\nLa gastroenteritis causada per <em>Listeria monocytogenes<\/em> t\u00e9 un <strong>per\u00edode d'incubaci\u00f3 relativament curt, que va des d'unes poques hores fins a 2 o 3 dies<\/strong>.\r\n\r\nD'altra banda, en la forma greu i invasiva de la malaltia, el per\u00edode d'incubaci\u00f3 sol ser de 1 a 2 setmanes, per\u00f2 pot oscil\u00b7lar entre alguns dies i 3 mesos.\r\n\r\nAquest per\u00edode d'incubaci\u00f3 prolongat fa que sigui dif\u00edcil identificar l'aliment que est\u00e0 a l'origen de la infecci\u00f3.\r\n<h4><strong>S\u00edmptomes de la Listeriosi<\/strong><\/h4>\r\nLa Listeriosi causa <strong>dues formes de malaltia<\/strong> en els \u00e9ssers humans:\r\n<ul>\r\n \t<li><strong>No invasiva<\/strong>: \u00e9s una forma lleu que afecta sobretot persones sanes. Els s\u00edmptomes s\u00f3n <strong>diarrea, febre, mal de cap i dolors musculars.<\/strong><\/li>\r\n \t<li><strong>Invasiva:<\/strong> \u00e9s m\u00e9s greu i afecta els grups d'alt risc. Es caracteritza per s\u00edmptomes greus i una alta taxa de mortalitat (20-30%). Entre els seus s\u00edmptomes hi ha la <strong>febre, els dolors musculars, la septicemia i la meningitis.<\/strong><\/li>\r\n<\/ul>\r\n<strong>Les dones embarassades poden experimentar s\u00edmptomes lleus<\/strong> semblants als de la grip (febre, fatiga i dolors musculars) per\u00f2 <strong>la Listeria es pot transmetre al fetus<\/strong> causant avortament espontani, mort fetal, part prematur o infeccions potencialment mortals al nounat (bacteri\u00e8mia i meningitis). Un ter\u00e7 dels casos confirmats d'infeccions maternofetals per <em>Listeria monocytogenes<\/em> provoquen avortament o mort fetal.\r\n<h4><strong>Tractament per a la Listeriosi<\/strong><\/h4>\r\nLa Listeriosi es pot tractar si es diagnostica a temps<strong>. Els antibi\u00f2tics es fan servir per tractar s\u00edmptomes<\/strong> greus com la meningitis. Quan es produeix una infecci\u00f3 durant l'embar\u00e0s, l'administraci\u00f3 immediata d'antibi\u00f2tics preveu la infecci\u00f3 del fetus o del nad\u00f3.\r\n<h4><strong>Transmissi\u00f3 de la Listeriosi<\/strong><\/h4>\r\n<em>Listeria monocytogenes<\/em> <strong>es pot transmetre a les persones per via vertical<\/strong> (mare-fill a trav\u00e9s de la placenta<strong>), zoon\u00f2tica i\/o nosocomial<\/strong>. Actualment, el 99% dels casos de Listeriosi humana s\u00f3n de transmissi\u00f3 aliment\u00e0ria mitjan\u00e7ant el consum d'aliments d'origen animal (carn, peix, llet, etc.) contaminats amb pat\u00f2gens.\r\n<h4><strong>Com prevenir la listeriosi?<\/strong><\/h4>\r\nEn general, la prevenci\u00f3 de la Listeriosi \u00e9s similar a la prevenci\u00f3 d'altres malalties transmeses per aliments i, per aix\u00f2, \u00e9s important seguir les cinc claus per a la innocu\u00eftat dels aliments definides per l'OMS:\r\n<ol>\r\n \t<li>Mantingueu la <strong>neteja.<\/strong><\/li>\r\n \t<li><strong>Separeu aliments crus i cuinats<\/strong>.<\/li>\r\n \t<li><strong>Cuini completament:<\/strong><\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>Els grups de risc han de con\u00e8ixer els aliments de risc i evitar-ne el consum o consumir-los amb tractament t\u00e8rmic previ a m\u00e9s de 70\u00b0C.<\/li>\r\n<\/ul>\r\n<ol start=\"4\">\r\n \t<li><strong>Mantingueu els aliments a temperatures segures:<\/strong><\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>Mantenir sempre la temperatura de la nevera per sota dels 4 \u00b0C.<\/li>\r\n<\/ul>\r\n<ol start=\"5\">\r\n \t<li>Utilitzeu aigua i mat\u00e8ries primeres segures:<\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>Respectar les dates de caducitat dels aliments que es mantenen refrigerats.<\/li>\r\n<\/ul>\r\nA m\u00e9s, les persones en <strong>grups d'alt risc<\/strong> haurien de:\r\n<ul>\r\n \t<li>Evitar consumir productes lactis elaborats amb llet no pasteuritzada; embotits i productes carnis llestos per al consum com salsitxes, pernils, pat\u00e9s i carns per untar, aix\u00ed com marisc fumat en fred (com salm\u00f3 fumat);<\/li>\r\n \t<li>Respectar la vida \u00fatil i la temperatura d'emmagatzematge escrites a les etiquetes dels aliments llestos per al consum;<\/li>\r\n \t<li>Cuinar abans de menjar \u00e9s una altra manera molt efica\u00e7 de matar els bacteris.<\/li>\r\n<\/ul>\r\n<h4><b>Conclusions<\/b><\/h4>\r\n<ul>\r\n \t<li>La Listeriosi \u00e9s una <strong>malaltia relativament poc freq\u00fcent, per\u00f2 la seva forma invasiva \u00e9s una malaltia greu<\/strong>, amb altes taxes de letalitat sobretot en els grups de risc.<\/li>\r\n \t<li>La seva <strong>dosi infectiva no est\u00e0 completament determinada<\/strong> i el per\u00edode d'incubaci\u00f3 pot variar des d'unes hores a gaireb\u00e9 3 mesos.<\/li>\r\n \t<li>Per prevenir la malaltia, haur\u00edem de <strong>con\u00e8ixer els aliments de risc i seguir les cinc claus per a la innocu\u00eftat dels aliments proposades per l'OMS<\/strong>.<\/li>\r\n<\/ul>\r\nPROQUIMIA, a trav\u00e9s de la seva \u00e0mplia gamma de <strong>productes detergents i desinfectants per a superf\u00edcies i mans,<\/strong> desenvolupa plans de Neteja i Desinfecci\u00f3 personalitzats per a cada proc\u00e9s i instal\u00b7laci\u00f3, per tal de <strong>garantir les m\u00e0ximes condicions higi\u00e8niques dels aliments<\/strong>.\r\n<h4><strong>Fonts<\/strong><\/h4>\r\n<ul>\r\n \t<li>Butllet\u00ed acsa brief n\u00ba9 maig-juny 2018. 2018. https:\/\/bit.ly\/2Sc0jt3<\/li>\r\n \t<li>Publicat l'informe de la UE sobre les zoonosis \u201cOne Health\u201d 2019. 2021. https:\/\/bit.ly\/3vyuFqS<\/li>\r\n \t<li>EFSA Journal. The European Union One Health 2018 Zoonoses Report. 2019. <a href=\"https:\/\/bit.ly\/34XukE8\">https:\/\/bit.ly\/34XukE8<\/a><\/li>\r\n \t<li>EFSA Journal. The European Union One Health 2019 Zoonoses Report. 2021. https:\/\/bit.ly\/3wIRPw0<\/li>\r\n \t<li>Informe One Health sobre Zoonosi a Europa 2019. 2021. https:\/\/bit.ly\/3iMRdl3<\/li>\r\n \t<li>Listeria. https:\/\/bit.ly\/2HFPZaJ<\/li>\r\n \t<li>Listeriosi. 2018. <a href=\"https:\/\/bit.ly\/3xkCfGW\">https:\/\/bit.ly\/3xkCfGW<\/a><\/li>\r\n<\/ul>\r\n<strong>AUTOR: Agust\u00ed Capdevila<\/strong>\r\n\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\n","protected":false},"excerpt":{"rendered":"<p>La Listeriosi \u00e9s una infecci\u00f3 causada pel bacteri Listeria monocytogenes. Els brots d&#8217;aquesta malaltia es relacionen generalment amb la ingesta d&#8217;aliments que contenen gran quantitat d&#8217;aquest bacteri. Es tracta d&#8217;una malaltia relativament poc freq\u00fcent, ja que la seva incid\u00e8ncia \u00e9s for\u00e7a baixa en comparaci\u00f3 amb altres malalties associades a microorganismes transmesos pels aliments. Tot i [&hellip;]<\/p>\n","protected":false},"author":21,"featured_media":34452,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[551],"tags":[],"sector":[249,378,386,390,505,513],"country":[],"ppma_author":[632],"class_list":["post-35587","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articulos-tecnicos-industria-alimentaria-ca","sector-industria-alimentaria","sector-aliments-processats","sector-industria-de-begudes","sector-industria-lactia-i-formatgera","sector-articles-tecnics","sector-home-ca"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Listeriosi: prevenci\u00f3 i control alimentari PROQUIMIA<\/title>\n<meta name=\"description\" content=\"La listeriosi est\u00e0 causada per la bacteria Listeria monocytogenes. 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