{"id":5213,"date":"2014-04-07T10:00:34","date_gmt":"2014-04-07T09:00:34","guid":{"rendered":"https:\/\/sesc.cat\/tuberculosis-surveillance-in-slaughterhouses\/"},"modified":"2022-03-24T18:51:29","modified_gmt":"2022-03-24T17:51:29","slug":"tuberculosis-surveillance-in-slaughterhouses","status":"publish","type":"post","link":"https:\/\/sesc.cat\/en\/tuberculosis-surveillance-in-slaughterhouses\/","title":{"rendered":"Tuberculosis surveillance in slaughterhouses"},"content":{"rendered":"

Tuberculosis is a zoonosis caused by bacteria of the Mycobacterium tuberculosis<\/em> complex. In Catalonia, in the last 5 years, cases of bovine tuberculosis have decreased considerably due to the program<\/a> being carried out to eradicate this disease.<\/strong><\/p>\n

In a low prevalence scenario as such, passive surveillance based on detection of lesions compatible with tuberculosis at the slaughterhouse<\/strong> becomes vitally important to detect new outbreaks of the disease and to control them before they spread to other herds or people.<\/p>\n

Tuberculosis has characteristic lesions<\/a> that involve the presence of granulomas<\/strong>, especially in the respiratory lymph nodes<\/strong> (see Figures 1 and 2). It is therefore necessary to make an accurate diagnosis of all granulomatous lesions observed at slaughter. Laboratory analysis (histopathology , PCR , microbiological culture) allow to distinguish whether these lesions are caused by mycobacteria or other etiologies that cause similar macroscopic lesions such as fungi (see Figure 4), parasites, certain neoplasias, etc…<\/p>\n

Moreover, tuberculosis does not only affect cattle, goats\u00a0<\/strong>among other domestic species, are also susceptible and it has been proven that they can transmit the disease to cattle herds<\/a>. We must also pay attention to the presence of TB lesions in wild reservoirs, especially the wild boar <\/strong>which\u00a0<\/strong>is a reservoir of tuberculosis in the Iberian Peninsula<\/a> .<\/p>\n

Below are images of some cases arrived at SESC in the recent months.<\/p>\n

\"Lesions<\/a>

Figure 1: Lesions compatible with tuberculosis in the mediastinal lymph nodes of a calf.<\/p><\/div>\n

\"Lesions<\/a>

Figure 2; Lesions compatible with tuberculosis in the tracheobronchial lymph nodes of three breeding goats.<\/p><\/div>\n

\"Pearly<\/a>

Figure 3: Pearly disease in the rumen of an 8 years old dairy cow.<\/p><\/div>\n

\"Granulomatous<\/a>

Figure 4: Granulomatous lymphadenitis of the mesenteric lymphnode in a 9 months old calf. The histopathological study showed that the lesions were caused by fungi.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Tuberculosis is a zoonosis caused by bacteria of the Mycobacterium tuberculosis complex. In Catalonia, in the last 5 years, cases of bovine tuberculosis have decreased considerably due to the program being carried out to eradicate this disease.<\/p>\n","protected":false},"author":6,"featured_media":6825,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[171,173,245,257],"tags":[397,399,410,392],"class_list":["post-5213","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bovine-2","category-caprine-2","category-lymphoid-bovine-2","category-thoracic-cavity-bovine-2","tag-infectious-en","tag-lymph-nodes-en","tag-tb-en","tag-thoracic-cavity-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts\/5213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/comments?post=5213"}],"version-history":[{"count":0,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts\/5213\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/media\/6825"}],"wp:attachment":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/media?parent=5213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/categories?post=5213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/tags?post=5213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}